Large Bore Short Stroke FI Engine?
To have the best of both worlds one would have to decide on c.i. A built 370 v a 427 will make the same hp and tq. Its all where in the power band it will be deliverd. the 370 option ls is great you can fit a nice thick piston in there to match the bore leanth. ie stock stroke crank. The one issue with a stroker crank is cylinder bore leanth. You will pull the bottom of the piston out of the bore heance a shorter piston that pushes the rings closer. It has been done thousands of times 402-408-416 have push 1k to the wheels with stock leanth bores. But to have it more reliable it needs a longer cylinder bore to match the stroke. I would look towards the sleeved and stroke motors for a broader power band. Its simple a 402 with 20 psi vs a 370 at the same psi the 402 will make more power. Imho Id choose a 427 sleeved with a 4.125 bore and a 4.000 stroke not a 4.000 bore adn a 4.125 stroke. Bigger bore will support more power.
But in the end it comes down to how much to spend lol
But in the end it comes down to how much to spend lol
Thread Starter
TECH Enthusiast
Joined: Sep 2010
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From: North Central Ohio
Teching In
Joined: Oct 2006
Posts: 39
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From: Now living in Alberta Canada....
my 2 biggest likes on the long stroke is lower rpm(i don't like beating up the valvetrain) and more tq. Lets face it,unless we are racing a 2200lb car,we need tq. To the guys that say they have too much tq, i say no,you just need to figure out how to get the car to work better.
