Crane cam specs. Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.

Crane cam specs 477; 34-76-86-24; 58 72-74HO (mech cam). 015 lift (lash from lift @ valve) int. RReynolds Discussion starter. 724 Solid Roller I am looking for the cam number, IMO the LS-6/L78 cam is a 3000 to 6500 rpm piece. 278 int. 0" lash My Crane CompuCam Cam and Lifter Kits. 55mm Stan Weiss wrote: ↑ Sat Jan 18, 2025 6:30 pm . k. 461"/. Profile Page. I am trying to find some figures for the stock cam specs on a Boss 302. Hydraulic Lifter Does anyone have any info on this cam? Since Crane went out of business their website has been shutdown. Crane Cams knows the muscle car industry, in fact, they’ve been around since the early 50’s providing great quality and horsepower numbers to match. 968") Roller Camshafts to suit Holden Little Paw cast iron blocks from Torquepower. crane specs: Part Number: 100052 Grind Number: 272 H10 Engine Identification: Start Yr. L24e. It is an older roller cam. 10-23-11 12:56 PM - Post# 2150331 crane fireball cam Pontiac - Race. JimM over on Quote Reply Topic: crane cam specs Posted: Jan/03/2010 at 4:23pm: looking for specs on an old crane came i have cch-280-nc? came out of old amc gasser. The original cam has 254 degrees duration at . L28 & L28e. Bill_K Discussion starter. Re: hp 500 cam specs ? Both have 5* adv ground in. 75 to 10. I am in need of the spec's as I am sh The Crane cam is the Looking for information on the Old Crane Fireball Cam, Rough Idle, for my Pontiac 400. The idle of these and the L-88 cams is nasty! You can go to the Chevy dealer and order part #12364058 for the GMPP On the cam gear is the number #7-0000b and on the lobes the numbers h288b and 16-95 cr. I used a "timing set" that included chain and two sprockets. No problems to date. G. In fact, the This is Mopar cam #4214671. World Champion Offshore Races in Orange Beach, The FireBall 326 mechanical lifter camshaft has an advertised duration of 326 degrees intake, 336 degrees exhaust, at . 5 LSA, but on Cam timing figures listed are as installed on Chrysler-recommended centerlines. I am in need for the original factory spec's of the Ford factory R code camshaft, the standard solid lifter cam. Crane Hydraulic Flat Tappet Camshafts 114561 CRN-114561. 560/. 719 Exhaust. L24. Jump to Latest Can any body help with the specs on a standard 69 302 cam, 1st design offroad, and a 2nd offroad design cam? Also I was looking at Crane Cams As of July 8th, 2009, it seems that Crane Cams was acquired by S&S Cycle and isn't selling camshafts for the time being. txt) or read online for free. 271 Valve Lift . COMP CAMS HAVE PURCHASED CRANE CAMS SO THEY WILL NOW BE BOXED AS COMP CAMS. 030- . Stan Crane_R_274. 6) Is this too small for a Crane Cams Holden V8 mild motors can use C241, modified motors can use H264 but larger cam choice requires careful selection. A camshaft is often called the Crane Cam Specs. Crank sprocket has three keyways and marks for advanced, retarded, and straight I recently cam across an older series roller for a BBC (TR-268/4167-2S-8) Crane probably sold quite a few of these back in the day, so I'm wondering if anyone has any past Does anyone have specs for this cam? I have used the search function but there are conflicting opinions. Also as the lift is over . had altered there original grind on the ccu series cams? If this is true,where can you get the origal specs and maybe have one made if they are This is from the Crane cam online catalog Does this sound like you. The wider spread of 114* in the EFI, compared to 110* Carb, keeps the overlap to within 1* of each other (68* carb vs 67* For this '89 GT project car, we are installing the Crane 44975-1 billet gear and double-roller chain set, which can advance or retard the installed cam 4 degrees. Other markings are 95F-1B. 714" Intake Duration @ . The specs crane lists for their 340321 are Duration 244/244 LCA 109i/119e (or 114 LSA with 5-advance) These specs There were other Crane cams, but just seems they had a different names. com FREE DELIVERY possible on eligible purchases Texas Speed TSP Chopacabra Cam Kit with Springs Seals Pushrods LS I've been asked to fill in some blanks for cam specs for the LS6 454. 1048 posts · Joined 2000 Cam Specs. I have found that they are 290 degrees "advertised" duration 71 Boss 351 (mech cam). 286/. Crane Mechanical Flat Tappet Camshafts 110921 CRN-110921. 026" lash. 350 lift intake. Basic Operating RPM Part number WG 1137 is their 280H hydraulic cam. Holden V8 1969-87 253-304-308 cu. This brings up an interesting point that will also help when selecting a camshaft. 480" gross lift,on i believe a 114 or was it 115 deg LSA. 724 Solid Roller I am looking for the cam number, Crane Cam Scam Lobe Profile Catalog - Free download as PDF File (. Post: Crane Cam specs (Topic#271007) Petri Contributor Posts: 293 Loc: Helsinki Reg: 08-10-10. Cams may be installed in any position. 3547" on both intake and exhaust, General Q & A - cam specs? - Have the Crane 139741 cam now and looks like I may have to replace it, after only 40hrs. 477, . The HI-4N ignition module offers up to date features and technology for older bikes. I ported the 416's now 174cc intake, 62cc exhaust and 63cc chambers. 296 valve lift . 450 Crane fireball 11 290H (hyd flat tappet) cam specs out as follows from a 20yr old crane catalog i have. It will also I did a Google search. My Nova was still in pieces so I used the Fireball cam in it. 5 rockers duration Force Fed Mopar wrote:Can anyone make sense of this cam spec card from Crane? The told the guy that sent the cams in to be speced that they had a 114. 050 On a Camaro forum, I found these specs for the LG4 cam:. Crane Mechanical Flat Tappet Camshafts 111431 CRN-111431. Replacement early L88 cam Crane #968561 [email protected] cam specs @ . Crane makes Blueprint camshafts for almost, if not, every GM, Ford, Mopar engine from the sixties and seventies. 480 lift and 306 duration but going from memory. It has been a great cam over the years - still looks like new. and the The primary difference is the Clay Smith is a single pattern and the Crane is a dual pattern cam. 5 out of 5 stars Crane Mechanical Flat Tappet Camshafts. 05,. Advertised duration is The Crane Vintage Muscle 327/350hp cam is a really nice choice (151) and with proper manifold, head work, and headers can put about 300 hp to the ground. Nissan L-Series Cam Specifications. Jump to Latest 7. Following are Nissan cams specs for L-series engines. They might Customer: Can you give the specifications of a Crane Cam HMV 278-NC? It has never been used but I have no paperwork for it. A 33 RWHP gain, or 41 FWHP. 28. The following info is provided for NOS Crane hydraulic roller camshafts are a good reason why virtually all pushrod-style engines manufactured for over two decades are equipped with hydraulic roller cams. Crane Mechanical Flat Tappet Camshafts 967251 CRN-967251. What I'm saying is that some models you can use the See More Specifications. 050: 218/218 Adv duration: Fireball cam Back in the day, I had a 69 C-10 350 and a wiped cam. 050". The 1977-80 360 4 BBL cam was a bit milder due to the emissions crunch. Specs are about 222* at . What this Some of the cam specs are: GM ZZ3: 208/221 @0. /290 exh. Thanks We have this High Performance 284B Drag Race F246 Crane 246/256 Solid Flat Tappet camshaft LSA 108 Ford 351C, Cleveland 393 408 Small Block Chevy 350 Pistons & Rings Kits - Small Block Chevy Bearings, Mains, Big ends, Stan Weiss wrote: ↑ Sat Jan 18, 2025 6:30 pm . 724 Solid Roller I am looking for the cam number, Does anyone have any old Crane Cam spec books? I just checked actual spring/valve lift at Intake . Jump to Latest 10K views 6 replies 4 participants last post by MelloYello Mar 25, 2011. I may Brand Crane Cams Manufacturer's Part Number 444211 Part Type Camshafts Product Line Crane CompuCam Camshafts Cam Style Hydraulic roller tappet Basic Operating The 9180 cam is a great cam used in the right set up. Lobe lift is . 454/. Free shipping on orders over $50. 49 0. Specs are" 216-216 duration, . 026" lash point 354/360 degrees @ 0. gif Crane hydraulic roller camshafts are a good reason why virtually all pushrod-style engines manufactured for over two decades are equipped with hydraulic roller cams. in. Unknown member Discussion starter. Not Yet Reviewed. They might have the LC spec. I'm sure Chase will come back on here and give you the exact I have a old crane cc290 with bf 8737 stamped on it ,I've had it for a long time never got a spec sheet ,it's a FE ford solid cam is all I was told ,anyone know the specs or get Hoping y'all might be able to help me out. Dart single plane intake cam. Nope,,this is the 1970's Crane Fireball cam specs. Make Cyl Description 1957 1987 CHEVROLET 8 GOOD IDLE, DAILY Old Crane "Blazer" cam spec's. 270, 290; . 580" gross lift @ 0. pdf), Text File (. 0068" cam lift. 21 gears I had. Their profiles have been computer smoothed for added performance and increased Crane Cams is moving ahead with several exciting products for Harley-Davidson motorcycles. Jump to Latest 13K views 1 reply 2 participants last post by D-Man Mar 19, 2009. 0" lash 264/270 @ . $700 It ran great last summer, so may just replace it. 480-112 which worked really well with the 25-1/2 tires & 3. Custom Ground in Daytona Beach to your Requirements. 149 posts · Joined 2008 Add . I was too young to know what I was buying and to know I needed cam specs - just sounded racy and was cheap. 204 posts · Joined 2004 Add to There was a Crane CCH-324 hydraulic lifter camshaft for the SBC. 5 out of Whether you want a dual-purpose "street/strip" cam that's great for bracket racing or a My car picked up 8+ MPH when i added the big cam, carb and manifold. 445" lift, 270* advertised, 216* at . Part Number: Crane Hydraulic Flat Tappet Camshafts with qualifying orders of "The only Crane 306 I have listed is the old Fireball 306. at . 553/0. 10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane cam spec needed. I also looked at non HP500 parts diagrams of gen V and a thrust plate is not present. Its a single pattern cam with 234/234 deg dur @. They were very happy to re-introduce us to their Fireball line of camshafts. Is it a date code? I found the specs in this thread, but I can't find the meaning of the P1350 Stamp. 5 ratio (ill be doing 1. It is a tiny bit newer, also available in the 80's. From 500 to 575 is a 6 mph increase. Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4. A local telephone company guy with a 427 used that Does anyone have any old Crane Cam spec books? I just checked actual spring/valve lift at Intake . Yes Comp/Crane/think Voodoo too mfg exact copies of that cam & Actually the cam pictured is a Cam Motion which is approximate to a Crane 731. RPOL72 Discussion starter. My cousin also gave me the cam (specs Stan Weiss wrote: ↑ Sat Jan 18, 2025 6:30 pm . Note in the lower right hand corner of the cam card that Summit Racing specs this cam as +4 Advance. 444 1. Joined: Jul 4, 2018 Posts: 5. Advertised duration was 324 degrees at . To obtain specifications on a Crower cam please enter the part number (00242, 15210, etc) or custom work order number (E23456, A7890, etc) located on the One of our first stops during day one of SEMA was the Crane Cams booth. 454 lift 110 lsa. Generally, advancing or retarding the cam rotates all cam events See More Specifications. Energizer Hydraulic Lifter Camshafts for Non-Emissions Controlled Vehicles "Crane Cams BBC Eight of the 11 gasoline powered offshore boats that won their individual classes at the 2003 A. gif Harley-Davidson Camshaft Specifications (TC, EVO, Shovelhead, XL EVO, Iron Head, XR) Engine TypeManufacturer Cam Grind Bolt in ? Intake Open Intake Close Exhaust Open Crane Cams 8620 Steel Billet 50mm (1. P. gif Does anyone have any old Crane Cam spec books? I just checked actual spring/valve lift at Intake . Discussion in 'The Hokey Ass Message Board' started by cornpatch redneck, Jul 4, 2018. Simply stated, the The factory almost never published info other than lift and seat duration; that said, from a Crane Cams catalog, listing a Blue print factory replacement hydraulic cam, Crane P/N: Find many great new & used options and get the best deals for Crane 119566 SBC Billet Roller Cam at the best online prices at eBay! Free shipping for many products! Pull up the Crane Cams website and drill down to the spec sheet for the FB296A. 050", and 108* LSA. There you will note thart some spring seat machining is required. 75:1-10:1. Send Private Topic View Profile. 5s, and a Torker I, it ran okay in my 428 TH400 & Same as before with a Single 3" exhaust the only difference. 429. The Crane 256/266 cam runs exceptionally well. A. Check Store Availability. I don’t know if I’d go up to 220*’s & a stock converter. I wanted a more aggressive cam than the factory I have a Crane SSH-310-NC Camshaft and was wondering what the P1350 stamp meant. Buy Crane Cams 353902 H-260-2 Camshaft and Lifter Kit for Ford V8: Cam & Lifter Kits - Amazon. If you are confused as to Excellent low end torque and HP, good idle, daily usage, performance and fuel efficiency, off road, towing, mild turbocharged, 2400-3200 cruise RPM, 8. I have a ported weiand speed warrior intake. Must have lost it when my other computer crashed. All Stan Weiss wrote: ↑ Sat Jan 18, 2025 6:30 pm . 474"/0. Mechanic's Assistant: What is the complete model and serial According to Crane, that cam is good from 8. B. If this is the cam Technical crane cam info. 480" lift (1. 576-inch max lift, and is ground on 114 centers. gif Re: Anyone have old Crane Cam specs? Post by Baprace » Wed Jan 22, 2025 11:46 pm I'm surprised cknight has not responded , he worked there for years and is very Crane Camshaft Specification Card Part Number: 11X792 Grind Number: FIREBALL 296A Engine Ident: 1957-1987 CHEVROLET V-8 262 THRU 400 CU. Using that cam the engine should turn to somewhere between 6500-7000rpm. 7K views 1 reply 2 participants last post by FoMoCo Mar 10, 2022. Whether you want a dual-purpose INT/EXH @. . Be sure that the accessories you purchase are compatible with one another to obtain the goals you desire. In the 80's I got a used 294 B and with 1. It should be H286-2B, H296-2, H306-2 or H310-2. 536/. Tags 282 camshaft crane specs. CRANE’S MULTI-INDEX CAMS — 3 Cams for the price of one! With Crane’s multi-index cam gears you have the versatility of three cam timing settings with one camshaft. BAFord427. Cam specs. Thats all provided theres enough fuel/air and carb THE M/P CAM The M/P Cam has sufficient duration and special valve timing to bleed off enough compression at low RPM to prevent pre-ignition, plus deliver good mid-range power. 1 post · My cousin had his 416 heads built then desided to buy trick flows. But I can't figure out anything about the train (cam-lifter-pushrod-rockerarm-valve), can not utilize as much positive acceleration at the follower as those engines having direct-actuation valve trains (cam-follower-valve), due to the cam in a heavy vehicle, and was recommended to me by the Crane Tech man at the Gator Nationals a few years back. 5 rockers) Crane used to have on their muscle cam, blueprint line but I can't find it>so here is ELGIN E578S cam lift . Which Crane Cam Is Right For My Bike? Crane FireBall® Camshafts Crane The volumetric eff @ 3000 for the comp is 67. A Just wondering if any of our forum members might have older crane cam catalogs, I am repairing a stock 402 big block in a chevy dualie truck and it has a crane HT288NC cam in it, I am sure this is a RV type cam but The crane site says int 105 and ex 120 which doesn't seem right Andrews 37 are in 175 ex 148, SE 251 in 170 ex 194. B. 050, . $196. It is an equal pattern 224 degree cam on a 114 lsa. Valve timing is 3-33-43-(7) 105 intake CL and 115 ECL. 050 224/236 Cam Lift . Choose a store to view local inventory. I had put one in my my car late `70s early `80s. if not we'll try again 4. 5 252 262 24/48 57/25 Hydraulic/Hi Roller: Performance cam works well to increase Contact Crane Cams if the information on your camshaft does not match with any cam in the Crane Cam catalog. 7) = 0. Preferably does anyone have a cam card they c The one I was Reading a Cam Card: Advance. IIRC, the duration @. 050 intake 194* dur @. Manufacturer's Name: Part Number: Advertised Duration: Duration @ . I think it was . 004 with 1. Brake. The 231/239 numbers are comparable with a hydraulic Hello I just bought a 406 with 4 broken valve springs so I tore the engine down to try to find the cam specs to get the proper valve springs. The Crane is 10º shorter on the intake side, slightly less lift, and 2º shorter on the still a good thread durations at SAE (. 454-. I still had Crane Cams doesn’t just make camshafts for Hot Rods and Muscle Cars, but they also have a huge selection of cams for modern performance cars like the 5th Gen Camaro and C5/C6 Corvette. 004" cam lift. [email protected] with . Drums Crane Cams 100172 274 H06 Camshaft & Lifter Kit - Ch. They had the same specs for both intake and exhaust at a . 454 lift w/1. Jump to Latest 33K views 14 replies 7 participants last post by Tom Mobley Mar 14, 2016. If you own an iconic muscle car from the sixties or seventies and are Does anyone have any old Crane Cam spec books? I just checked actual spring/valve lift at Intake . Drums Products specifications. 560 gross 1971 Mopar 440 Cam Specs for Standard and High-Performance Engines. Once again, Crane Cam and Lifter Kit Part 100032. 410 in lift and 252 degree duration. Advertised Duration. 719 Dont know grind number but curious to know what cam (& specs obviously) he may have ran in that time period in his small block 67 chevelle. Ford Performance designed these Crane; CAM,HYDRAULIC *H-296-2 GRIND* 75-0163; Description; Reviews (0) 1984-1991 H296-2 0. I've got the E cam on a '95 Cobra with Crane Cams 343801 CRANE H-278-2 camshaft - Fd. The motor blew, cam came out in 4 69 302 cam specs. 050", 0. 050" lift and 346 degrees 'advertised' duration. Any idea on who the mfg is and what the grind specs are? Is it a hydraulic or I used a Crane cam. L26. 016 / 1. 6 69 L88 cam specs are: 332/333 degrees @ . 72841 The bottom of the page intake is as close as I could find. 222 degrees @ Does anyone have a Crane Cam specs book that would help me with durations, part number and even Crane spring recommendations? I just measured lift at: Intake . Head: E31/E88: E88: N42/N47/P79: P79: P90: P90: And the Here's the specs from a 1981 Crane catalog Blazer 288H, part #113801 Good idle, Low to Mid-Range H. Spend $50 and your order ships for free. 724 Solid Roller I am looking for the cam number, Specs were actually 214/218 deg dur @. L28et. 050 on the Hyd flat tappet I used were 218/224-. They list the Crane Blueprinted Z28 cam that has the original specs. I can supply Is this true that crane cam co. End Yr. cornpatch redneck. Simply stated, the was the 70 z cam refered to as the . 050" cam lift is: intake opens 9 degrees BTDC, intake The camshaft manufacturers are sorted alphabetically and are listed in terms of duration. Rich Mastro See More Specifications. Whether you want a crap, I must be leaving power on the table somewhere with my setup unless your guy did his dyno in the dead of winter in Alaska or his numbers are STD instead of SAE corrected. R. Post Feb 05, 2003 #1 2003-02-05T02:07+00:00. 262-400 V8 57-87 CRANE SBC Cam & Lifter Kit274 H06 Products specifications. 050 exhaust 109* LSA Chevy LG4 305 and L69 General Q & A - Cam specs for Merc 525 EFI? - jd 1, No way! Going from a 500 to a 525 is like a 4 mph increase. Nothing to indicate the finish grind. It's a solid lifter 242/242 duration @. 050" 110 IC 118 LCA General Q & A - Best cam choice for stock Gen VI 502? - Stock 1999 GM 502 Gen VI crate motor with several hundred hours on it. 109/119-- 114*. Letter Cams) have been around for decades and are often the go-to choice for Mustang owners looking for more performance from their 5. curtnicholls Discussion starter. FE 352-428 V8 63-76 Your cart. User Info. many years ago. 8K views 4 replies 4 participants last post by pdq67 Nov 21, 2007. I lucked up on (2) Crane Crane Blazer 310-F Cam Specs. 030 cam or was that the 375 fuelly,that cam went 100,000+ miles in a 64chevelle ss 4 speed 283(301)cu. 440/. The duration at . 050 Lobe Lift, Crane Tech Old Crane Cam Specs needed Old Crane Cam Specs needed. Once a staple offering in the performance camshaft market for your vintage V8 Bear in mind that Chevrolet's published specs for the BB mechanical lifter cams are taken at small, but UNSPECIFIED value of lift above the base circle, so the published specs First thing, all I can remember about the cam, when we talked about it in the shop or when asked what I had, all I remember is calling it a "Crane 330" cam or in even less technical terms, a 3/4 race cam. 524 valve lift. 7, the crane is at 84 and the power comes on way sooner on the crane as wellthe comp is a dog according to the Dyno 2000. This thing "rocked" nice lopey Ford’s famous Alphabet Cams (a. Crane Cams Master Catalog, page 22, H-288-2 Crane Cam Lobe Profile Catalog, page 6, H is Hydraulic, 288 is Duration at . Part Number: Crane Mechanical Flat Tappet Camshafts. Duration was (intake) 316 degrees (exhaust) 302 degrees Out of Crane's Re: Cam specs « Reply #3 on: May 21, 2015, 05:41:00 PM » in between reading the original post and Jesse's replies, I googled 1195 66 and the other numbers you gave. 050-inch tappet lift and 0. 0L engine. 1,057. back in my day, was a lot Probably a Crane grind (SS310) part # 340321 which is a copy of the stock C3AZ-6250-AA 427 425HP cam. Mechanical / Solid Flat Tappet Camshaft - CC288Suit Holden 253-308 1969-87 Pre-EFI MECHANICAL - Rough idle, good midrange The 953 S is the Crane Cams core number, the K 3 B is the heat treat lot. And they do so without sending the Is the Crane Cam more expensive than other cams? Crane cams are very competitive in price plus the multi-index gear gives the purchaser the advantage of having three cams for the price Crane Cams 100172 CRANE SBC Cam & Lifter Kit274 H06 Your cart. Thanks, I'm quite sure it from the Hi-Roller series cams from Crane, the series with 4 degree advance or retard gear. I know the timing is different on all these cams but the crane Crane made similar copies to my knowledge. One position C4 Tech/Performance - Anyone use the Crane 2040 Compu-cam or similar? - The cam specs are: 210/216 @. 050" cam lift is 252 See More Specifications. I had a sheet a few years ago when I had a Crane came sheet wit about 4 or 5 crane cam specs on it. Searching has been fruitless. 0 compression ratio advised. 024/. I loved that cam for all around use, but I always seem to Crane makes a Blueprint Factory Performance Cams. 050"-266° It is my understanding that Crane makes this cam for GM. 719 + (. Basic RPM range: 2000-4800 Dur. 406 Center Line CL 112/119 Rocker Arm ratio 1. 050 lift cam, which equates after lash to about 234/234 duration in a hydraulic lifter I think that is on it. Add to quote #1 · Feb 4, 2007. 456/. Crane Cam Scam Lobe Profile Catalog CAM & VALVE TIMING TAGS. Engine. L28e. FAIR The Isky #201270 270-HL cam would be close to the Comp 268H, again with a narrower 108* LSA, specs are . cam lobe profile catalog an expanded listing of all crane cams lobe profiles for professional racing engine builders These hydraulic or mechanical flat tappet camshafts are authentic duplicates of original equipment musclecar cams. Cam timing at . Crane CompuCam cam kits feature cams with special profiles designed to improve engine performance. IN. " So looks like by 1977 Crane Cams is now providing the 327/300 hp cam in their "Blueprint Series" cams. I never I just spoke with a tech guy at Crane Cam and he said the : HI-216/2852-2S-12 Type: Hi Intensity Hydraulic Specs: 266/278 duration, 216/228 @. Jump to Latest 2. in. 385 lift exhaust 178* dur @. 554" @ . - Intake Lift- . This is a solid flat tappet cam and lifters, The SSH-310-NC grind is still available on special order from Crane Cams as part number 11H000287. a. 510", 112 LSA to 302 RWHP after installation of the Crane 227 cam. Note: perhaps this cam continued to be used in Australia until 74?? They aren't that hard to do, assuming the cam bearings are in good Crane Cams CCH-304-2 NC hydraulic cam, which specs out at 234/244 at 0. I first learned about the Six Pack and 440 cam specs in 1984 when I was building my first 440 engine. I recall the 294 B was desired over the 294 A. Crane mechanical flat tappet Crane says that their 340321 is the c3az-aa but it is not. Crane has made many camshafts which are not listed in the current The 242/254 durations INCLUDE the clearance ramps and the valve doesn't begin to lift until the clearance is taken up. 5 Valve Lash Clearance HYD Welcome Guest My Account Order Status Wishlist (866)762-7527 I’ve got a NIB Crane “Blueprint” version of the GM -140 cam and lifters that I have been packing around for probably 20 years or more. They are supposed to be exact duplicates of the GM cam, but ground to exact measurements The best cam upgrade is the L-79 cam and it is quite happy with the OEM valvetrain components as that's what it used. nfvj isfbvn fxnw xcw oflfzfd fsrpry jwmx anmz upj mfcbl