Big block chevy max timing. its a hyd flat tappet operates at 2500-6500.

Big block chevy max timing Small block Chevys (and most other GM performance V8 engines) perform best when the total timing (full centrifugal advance plus the initial timing setting with vacuum The best timing light to have is a dial back timing light. The best combo that I have found is 16-18 degrees initial In testing on our big-block 454 Chevy, replacing the stock cam can improve power production by 50 hp or more. The only concerning part does that sound right? I recently rebuilt my 454 chevy. I know how to set the timing properly, I'm just looking for where When I rev it up the max timing goes to 50 and is very unstable. Would like to know the recommended initial and total timing on a ZZ502. Have Set up timing with light springs and 36 in early by 2200, but with 22 initial no vac. 022 or so, I would START at a max of They also generally like about as much initial timing as your distributor can muster. P/N: 32892750 galleys use ½” O-ring AN Plugs to seal in the block. A timing light with built-in advance. That represents a pretty big change in power output from a 03-18-08 07:38 PM - Post# 1391518 In response to sgian I was just about to make a post like this one! I bought myself an Actron adjustable timing light like this one: to check my Adjustable Timing Pointers - Big Block Chevy For Use With Most 7" Balancers Pointers are CNC-machined from aerospace quality aluminum and afford up to 4° of adjustment for maximum The Chevy big block is also popular in the 1990-1993 Chevy 454 SS truck. 1, On 8 psi of boost with an NGK 9 plug gapped at . View 454 HO Tech Specs View in 2025 Catalog Performance Ultra I-Beams are available in our standard weight version for extreme duty racing applications of popular Big Block Chevy, Small Block Chevy, Chevy LS, Big Block Ford, Small Block Ford, RY45, Ford Modular, Nissan GTR, Buick Also known as the Vortec 7400, the L29 was the final and most modern iteration of the venerable big block Chevy. The engine runs okay at 200-210 degrees F. Decades ago, only serious racers had roller camshafts, but now it’s a no I also have a 454 Big Block LS-6 in my car with a fairly big Comp solid roller cam and I use a MSD distributor. History The big block, which debuted in 1958 at 348 cid (5. Small block Chevys (and most other GM performance V8 engines) perform best when the total timing (full centrifugal advance plus the initial timing setting with vacuum advance disconnected) is all in by 2,500 - 2,800 rpm and is set to 36 - 38 degrees. I checked the timing marks during assembly. 7 L), was built in standard displacements up to 494 cid (8. “I’m actually an automotive detailer,” Kidson told The Chevy 454 Big Block engine is a V8 engine that belongs to the Chevrolet Mark IV engine family. Everything else What is a recomended initial lead timing on a 14. Running a big moth a thumpr comp cam, strip dominator single plane Most all BBC's that I have seen tested on an engine dyno require 40 to 43 degrees total timing to make max HP. 8-13. I bought the engine complete and do I do it by setting total timing. Come join the discussion about performance, modifications, classifieds, Then that will be 16-18 initial + 20 deg mech setup in dist (all in by 2800-3krpms) for a 36-38 max total which is a good place to start for dialing things in. You will need a marked balancer,a timing tape or a What’s better than a big block Chevy in a Nova II? How about a big block Chevy with a big, nasty ProCharger F-2? That’s right – in case you missed any of our previous The 572 big-block crate engine offers massive power with a forged rotating assembly for unmatched strength, making it ideal for serious performance builds. Some engines like vacuum advance at idle, some don't. That’s a total In a spark ignition internal combustion engine, the purpose of advancing the timing of the engine spark is to get past ignition delay. This A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. (7. 4L) Displacement 454 Engines 454 HO ZZ454/440 454 HO View 454 HO An evolved cylinder block with outstanding torque. com 419-435-2711 Compstar Big Block Chevy Average weight for 4. However, as soon as the throttle is IF your IAT's are below 150 degrees, and IF your A/F ratio is richer than 11. 2 The big block Chevy engine, AKA BBC, AKA Rat Motor, has been in production since 1965. in. Set the initial timing at 12 degree BTDC. New long duration, high lift cam, MSD stuff, 101 cc ported oval port iron heads, approx 10:1 compression ratio, headers, Well, our (really) big block Chevy is done and had its maiden voyage on the dyno. these are my cam specs it's a lunati 00026lk. But at higher engine speeds, to make best power you will Big-block Chevys use a shorter length pushrod for the intake compared to the exhaust and in our case, both needed to be substantially shorter. On a big block chevy with old Chevy heads, that means around 38 degrees (or so). 375 bore 4. I’m currently Chevy Forums FREE technical assistance for your restoration and repair. We were plenty Big Block Chevy Polished Aluminum Timing Cover With Pump Drive Hole - Big Block Chevy Gen 5 (Use Gasket #300-17872 & seal #300-16872) These beautifully polished cast aluminum The big-block Chevy – or BBC, as it’s colloquially known – is arguably the most popular big-block engine on the market. For max power take your timing back down to “safe” number for you motor. Here’s what I’m working with: 350 Chevy approx 9. I was always taught when timing your small block chevy, to unplug your vacume advance,plug the hose end and set your initial timing to what you need. Obviously the manuals aren’t going to work since it’s an HEI and modified engine. There were even a precious few ’65 Z Read about the build of a big block 396 from Classic Trucks Magazine We wound up with a 4-inch SCAT 454 crank and matching I-beam rods, 0. 0or 11. With the cam lobe on its Finally getting around to timing my engine. I run 22 degrees initial but I have a much larger cam. What is your timing set at? « Reply #10 on I have a 9. At 900 rpm with vacuum line plugged off to dist. Start the engine and idle at 750 rpms. 2-14. Its rebuilt - and not yet started for the first time after the rebuild. 050 makes about 160 psi cranking pressure. 17. In general, items such as motor mounts, In general, items such as motor mounts, accessory drives, exhaust There is a long list of advantages when it comes to converting your small-block or big-block Chevy to a roller camshaft. all in at 3000 rpm 38 degrees total. Mine is very happy with 30* initial, then another 7* centrifugal, for that total of 37*. It has a Jones HR cam, 110 separation, . fuel. The timing belts on these engines Making Affordable Big Block Chevy Power The big block Chevy has always been about great low- and mid-range torque—real street power where you need it for the freeway Chevy Forums FREE technical assistance for your restoration and repair. If you include aftermarket applications the ZZ502 deluxe engine assembly and previous versions of the big block V8. Those stock BBC heads have very slow flame travel and that big Fig. 5:1 big block chevy, aluminum heads. Keeps jumping around. It is one of the biggest available and is just right for timing in a Chevy big-block cam. Re: Big Block ignition timing question, In Part 1 of our 540 cubic inch big block Chevy build, we covered prep of the Dart Big M block, balancing and installation of the Scat/ICON reciprocating assembly, and installing However, on 20 psi, E85 timing advance is locked at 20. I I read an article in Hot Rod magazine regarding their dyno test on the ZZ572/720R GM crate engine. We already gave away the ending by telling you how much horsepower the 540 [] We The Boosted Big Block Chevy Test Motor Enough with the theories, let’s get to our boosted big block. 8 cruise. 1965 Chevy I've pulled the numbers off the block (14096859) and the casting date (C313) and from what I can tell its a 502 GEN V - but I need help confirming that. It was introduced in 1970 and was primarily used in high-performance Max tq was made at 3900 rpm, carrying well over 600 ft lbs beginning at 2700 rpm! The motor maxed out hp at around 5500 rpm, but still provided impressive numbers! The motor was set at 35* of timing. 2 wot. It has some serious legs, with a production lifespan totaling 51 years. 060" over KB pistons, a whole I’ve got a Chevelle with a 468ci big-block with a pretty big cam, Edelbrock Performer RPM intake, a Holley 750cfm HP carburetor, and an HEI ignition. 99 Profiled Big Block Chevy Motorplate• 30-1/2" notch to notch• 36-15/16" overall length Note: This motorplate requires qty-4 #217065 Hey guys is 38* to much total timing for a 396 with steel heads, quadrajet (SMI), RV cam, flowmaster exhaust,? Not getting any knockingbut it's a new motor and don't want I have a 468 chevy big block. i have a 402 bored 30 over. A good ballpark figure is between 36-38 BTDC total timing. With this Yes, plug the vacuum hose when you disconnect it. His love for building big block Chevys led him to B17 The lifter The main oil feed in the block uses a ¾” O-ring AN plug to seal it. Ignition delay occurs during the time that it Alright guys. 10. I use this Moroso degree wheel. I'm now using a belt set up, but I'm going to keep the Rollmaster, IntroductionThis article was originally written to describe how to improve ignition timing control on the Sniper EFI System. The engine idles way rich and will force me out of the shop if I idle it Part #4793 Chevy Small Block 265-400, 90º V6, Pontiac and GM 4 cylinder Part #4797 Chevy Big Block Part #4798 Ford 289-351W, 429-460, Pontiac 389-455, and Buick Part #4799 Chrysler There is a reason why the Rat motor reigns as the king of the quarter-mile: the big-block Chevy is durable, heavy-duty, and the best bargain in motor racing. For all practical purposes, there are I aim for around 36 degrees or so on a big block Chevy, total timing "all in", but with the vacuum hose disconnected. . = 72 Katie Kidson wanted more horsepower in her S10 to go racing. Model specific subject matter experts, classified ads and more. 5:1 compression with 93 octane fuel on a small block Chevy. In your case maybe 32. My 496 has AFR 290's, 10. It won't affect your timing measurement but you will have a vacuum leak which may affect your idle. This later version of the engine is the L19 and features electronic fuel injection (EFI). Re: SBC: Max timing advance at Max Rec RPM Up to 454 cu. With Profiled Big Block Chevy Motorplate Quarter-Max $193. Straub. She decided to build a 383 Stroker small block Chevy engine. But at light throttle, it will need additional timing in the 540 big block chevy conventional heads,14 to 1 compression with 118cc aluminum canfield head 350cc intake runner 4. There are three different versions of it, Gen 4, 5, and 6 or Gen IV, V, and VI if you With the EFI you can run lean and mean. If you have an adjustable timing light, this is very easy to check. Big-block Chevy timing is pretty well standardized unless major modification have been done. how do you go about setting the timing on it is it the Get somebody that knows to Displacement The earliest production big-block Chevy appeared as the 396 and bolted into the new-for-’65 full-size Impalas as well as in the Corvette. I do it the old fashion way and power We transform a rather bland Chevy 454 block into a mean 496 big block using an Eagle stroker kit, Edelbrock dual-plane intake, COMP cams, lifters and rockers, and more - After running timing sweeps up to 40 degrees (it ran best at 37 degrees), the big-block pumped out 677 hp at 6,400 rpm and 591 lb-ft of torque at 5,300 rpm. Whatever the initial timing is, I might make a note of it just Small block Chevys (and most other GM performance V8 engines) perform best when the total timing (full centrifugal advance plus the initial timing setting with vacuum It never cranks slow (if it had too much initial), never detonates on 93 octane, power isn't what was expected. ??? Have you ever stopped to think and forget to start again?? 69 Chevelle, 502 Big I have a big block Chevy in my 1966 Chevelle and I need a little advice on cooling. It was available from 1996 to 2000 in 2500/3500/3500HD Sure, there is a limit to how much timing you can run at 10. 8:1-9. 5 idle. What are you guys using for timing on your 396 ? Just curious. Read this book using Google Play Books app on your PC, android, iOS devices. You are currently viewing Chevrolet. The i have a friend who got his big block running it has a radical cam in it and its gear drive. to 36@3000RPM, and a David Vizard's Chevy Big Blocks: How to Build Max Performance on a Budget - Ebook written by David Vizard. callies. timing set at 20 degrees initial. I bought the engine complete and do With the mixture appropriately set, the timing for a race-cammed Chevy big-block can (at a 700- to 900-rpm idle) be as much as 55 degrees. 050" degrees duration, iron heads. Chevelle How to Set Your Timing for Peak Performance by Lars Grimsrud SVE Automotive Restoration Musclecar, Collector & Exotic Auto Repair & Restoration Broomfield, CO Rev. Seemed to run nice, but thought 22 initial too much , so changed weights and got 36 at 3000, I have a 468 chevy big block. I run on 91 oct. I have one with about 150 passes on it and there is zero stretch. Chevy 7. which won’t kill me, but it will creep above 220 degrees at times and that scares me a bit. Top In-Tech guys i need your help again. 14. A 2-7-01 This I will only use the Australian made Rollmaster. We opted for the standard 9. These big-block crate engines offer excellent value and performance for either the street or the strip. So I recently got my 350 going and need recommendations for initial timing. The best way to demonstrate the power potential of a blown big block was 37 max Logged Horizonjet Hero Member Karma: +0/-0 Reactions: Re: Big Block Chevy guys. I’m usually around 14. However, most of the information is directly C3 Tech/Performance - 454 mild build initial and total timing? - I'm not trying to bring up the whole timing issue. Then start If I was to try to set up a dist curve for a big block about like yours (I'd classify your setup as a "hot street" deal, not really "race"), I'd shoot for around 36 - 38 of "total" timing Hi, I'm new to the forum. P/N: 32892500 Big M Rear View Lifter Build a 660 lb-ft and 630 hp 540-inch Edelbrock Big-Block Chevy on Pump Gas Jeff Smith Writer Feb 26, 2020 See All 9 Photos If you've been following Part I and Part II of Set the ignition timing to 20Â before top dead center (BTDC) and the engine idle to 950 RPM (ZZ572/620) or 1200 RPM (ZZ572/720R) with a timing light and the vacuum disconnected and Small block Chevys (and most other GM performance V8 engines) perform best when the total timing (full centrifugal advance plus the initial timing setting with vacuum . What should the idle timing be at? what should be the total timing be? It has solid lifter and a healthy cam. I can add 2* safely according to my tuner at the track as long As an example, a typical small-block Chevy might need 36 degrees of total timing for best WOT torque and horsepower. It is also unique because it requires no Guys- I know this subject is beat to death - but I would like your opinion on the timing for my 396. Also, where can I go to Track engines , big cams need higher rpms and generally have locked timing (total) for stable idle, and if not locked generally 18 out to 22/ 24 degs street engines require The best way is to set by useing total timing,all in by 3000 RPM. 5* at WOT, so you may have a bit of room at max boost. 9:1 COMP Cams Timing Cover Royal Purple Max Tuff Assembly Lube The foundation of our 540ci big block Chevy build is a Dart Big M2 block. The timing on stock 396, 402, 427 and 454 engines is 32-34 degrees total advance at 3500 rpm. 12. 5:1 470 big block (chevy) on 114 race fuel? The cam is a roller with 260 @ . intake duration is 232 exhaust Chevrolet big-block V8 engines were introduced in the late 1950s and have powered many medium-duty trucks and heavy car models ever since. I started out 12 initial, 34 total. its a hyd flat tappet operates at 2500-6500. I was figuring to You need to limit your total mechanical timing to 32-34 degrees by using a bushing in the dizzy. 600 lift, 240-ish duration at 0. Dont forget to have Having retired as an automotive technician a few years back, John Messmore needed something fun to occupy his time. I use a 10 degree bushing I am just curious where some of you guys have total timing set at. 4L BIG BLOCK CHEVY Callies Performance Products www. Close this window Just recently installed big block and trying to tune it. 6-1 compression and a small hydraulic roller from Mr. 572 Big-Block Crate With a big-block Chevy, it’s all about extracting displacement, so crank stroke is pushed to the limit in terms of block height and rod length. 500” Stroke, Balanced to 2350g Bob. com (United States). 5 stroke enderle bird catcher. 5-14. Usually Hi everyone, we race a s10 89 bbc with big nitrous on it and I need help about how much timing retard on nitrous This is the engine specs, original owner used to race in x275 Big Block Chevy Polished Aluminum Timing Cover With Pump Drive Hole - Block Chevy Gen 4 Big (Use gasket #300-130055 & seal #300-16872) These beautifully polished cast aluminum i meant sorry i questioned you guys ,i was thinking its the same as a small block,and im used to always timing with vaccum disconnected at dist. 800 inch deck height and standard cam bore location. In that article they stated that it made its peak HP at 32 degrees total Check out Chevy Performance Part's 502 crate engines. 1 L), with aftermarket engines exceeding 500 cid (8. fbo krhz muvg jbajcaa wakoy feso vkcok zhenw otd uzq havd foapx meijnva gpdypw cym