377

was wondering if anyone has ever tried a 377 with a lightweight crank and 6.400 rods with light weight wiseco pistons and if u have or where to run a short block like that what kinda track would u need to be running.

If I was to build any engine with that kind of coin in it, I would build a 383. Good cooling attitude of a 350, and the torque of the 400 without the headaches.

You going to try that in a tall block...don't think it will work well in a 9" block...I disagree about the 383" tho..we ran a 377 in our Super Stock and then our DLM until we got a big inck aluminum deal...the 377" had adequate torque and would really rev for a 23* deal...unshrouded the valves and let the heads work in a 4.155 bore vs. a small 4.030 bore in a 383"...imo

Using a standard deck block the longest stroke you could use would be a 3.20 if you used a 6.400 length rod.At 4.155 bore and 3.20 stroke you would only have 347 cu. in.

well if i did my math right til work using a 400 stroke piston that is set up to u a 6.125 rod then change the strock or the crank by .270 which u add to the rod lenght to make up the stroke difference and u get 6.395 which they dont make so u run the piston .005 out the whole. but like i asked what kida rpms would u have to turn to get it to make power?

and it only a 2800 dallor short block.

Rod length does not change stroke.

didnt say it did i said when u change from a 3.750 stroke to a 3.480 stock u could but that much longer rod in

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Originally Posted by 14flower

didnt say it did i said when u change from a 3.750 stroke to a 3.480 stock u could but that much longer rod in

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I think you need to calculate the rod lengh by 1/2 the stroke differance, as crank reach will be .135 further on the upstroke between 3.48 and 3.75.

Cheers Brendon

So a 6" rod Piston on a 6.125" rod should work.

Cheers