Just installed a new Autometer Artic White Tach. Just curious what the redline is for a freshly rebuilt '66 327? Specs: .030 over, .262 Comp Cam, 1.94 Camel Hump heads, Flat top pistons, 9.5:1 compression, edelbrock 650, edelbrock performer manifold, HEI, speedway trurams, 2-1/2" exhaust with Brockman Mellowtones. Matched up to a saginaw 4spd.
Your cam is usually what finalizes your redline limit. Id guess 6500? Whats the spec sheet say that cam with the cam?
My '62 Vette (327/340hp) has a redline of 6500. It is still pulling hard at 6 grand. Look at tach in attached photo. Solid Lifters like freaking music. Good Luck. Kent
You should strongly consider getting a SFI Approved Lakewood ****tershield if you don't have one already. Clutch explosions are not pretty! Take a look at this thread before you run it hard without one: http://www.jalopyjournal.com/forum/showthread.php?t=185297&highlight=clutch+explosion
my take on this is 7500 RPM used to do that on stock 307 and many 350 's and they will run all day and nite at that rpm modified or not but 100 rpm more and rings start getting ****ed off the tops of pistons a 400 engine can be turned 6500 at the most I had a humungus cam in a 302 SBC and broke the tires loose on a 1/2 mile track and turned 8500 for a couple seconds that was the end of eight pistons this is my experience from 18 years of stock car racing use to turn the engine 7500 in the shop and had a waterpump shaft break off and go through the radiator, had chunks of radiator hit my arms, kinda put me in shock that one no more flex fans after that
You're cam is going to stop you @ around 6000, but that's a small cam I had a 67 nova with a 337 with a 667 323 duration roller with all chevrolet parts in the bottom end, that I used to shift at 8800-9200. went 10.80,'s back in the 70's had that motor around for somewhere around 15 yrs sold it to my brother in law he went 10.01 in a 3600 lb camaro on nitrous once and put the rods in the pan
I had a tach like that once, it finally quit. You can't be serious? 7500 on a stock 307, and run day and night at that RPM.7500 setting in the shop?Broke the tires loose at 8500? You made my day !!
This is getting good,,shift at 8800-9200, with all stock chevy bottom end. WHAT COLOR IS THE SKY IN YOU GUYS WORLD?
365hp 327 in a '64 vette also. i never run over 5,000 actually probably not much over 3500-4000, but dad tends to run up to 6500 quite often. i think his right leg has a muscle connected straight to his ears, with side pipes and solid lifters he can't lift. i know who has to fix it so i drive slower, plus it looks to good to go by that quick.
Joecool This is getting good,,shift at 8800-9200, with all stock chevy bottom end. WHAT COLOR IS THE SKY IN YOU GUYS WORLD? I didn't say you could do it I just said I did I am sure you know your limitations I am guessing around 6000 but thanks for the reply and I didn't say stock bottom end I said Chevrolet parts Chevy steel crank lt1 rods with polished beams and trw pistons just nothing fancy with a set of Mondello heads that I still have to this day
Cam/intake/heads would peak power range, shift points can be found with that and gears (RPM drop) to keep max AVERAGE hp. BUT (I needs a bigger ****...................) Redline is normally max rpm (not shift point) and is all about rods, crank piston weights and how well stuff is put together. A cam combo that makes power at 8000 rpm in a block that would break at 5500? redline is less than 5500. David
i have a bell that rings when i hear or i read B.S. statements. some of these past statments made it ring right off of my desk. now for dirt racing we ran about 6000. but for the street i would not wind it much past 5500. it is not the max rpm you shift at it is when the motor quits pulling.
what bogus 62 said--my 340HP was 6500 redliine also--took it there a few times--no problem--my57 283/283 with solids will go to 6500+ as well--have had it at 7000 but wouldn't make a habit of it-stop around 6000 if you want some longevity also I don't think the saginaw will last too long with 6000+ RPM shifts--friend just broke a richmond 4 spd shiftin at 7200 with his roller cammed 327
1969 Nova Nitrous p*** 8.87 @ 154MPH this is my brother in law that I sold the 337 to, this is a 383 flat top rotating ***embly from Summit. for all you dirt track guys etc if you can't make a 327 run over 6000 maybe you should buy crate motors, but I agree you shouldn't be building motors
Factory redlines for almost all 327's were 5500 even the early L79's but they later upped them to 6000,The L76 and L84 were 6500 and were solid cammed The 302 Z 28 were 7000 and were also solid cammed His (the OP) Basic stocker doesnt need to wind any more than these its that simple
The Jalopy Journal
