402 BB Stroke Change - Team Camaro Tech
Engine General Engine Discussion.

 
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post #1 of 2 (permalink) Old Apr 6th, 04, 06:54 PM Thread Starter
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John
 
Join Date: Mar 2004
Location: L.A., Ca.
Posts: 285
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I was kicking around the idea of replacing the stock cast 3.76" stroke crank with a 4.00" stroke forged crank for more low end torque.

Has anyone done this before and what kind of mods will this require? (Block Clearancing / Custom Pistons)

I would be using the original 113cc open chamber heads and stock rod length. I was looking for a 10.5:1 compression ratio, but would the Speed Pro domes be too much for the stroke increase?

Any comments are appreciated!

John
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post #2 of 2 (permalink) Old Apr 7th, 04, 08:13 AM
 
Join Date: Apr 2000
Posts: 21,341
Cool

If I was to go to all that trouble, I would try a 496 crank in it b/c some of the blocks can take the 4.00" crank fine and if so, I bet a 4.25" crank will fit too!!

Anyway, it may be worth looking into if you DON'T want to use a 454 block, but still want to max. your cubes...

pdq67



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