kevin400ex
1/2 ton status
did you take into acount for the added stroke?
you are correct that on a stock stroke of 3.48 a .030 oversize bore would yeild 355.1 ci, but add in the 3.750 stroke and you get 382.6 to be exact.
CK5
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looking for chrome shocks/steering stabilizer
- Thread starter Dave T ('72 Blazer)
- Start date
did you take into acount for the added stroke?
you are correct that on a stock stroke of 3.48 a .030 oversize bore would yeild 355.1 ci, but add in the 3.750 stroke and you get 382.6 to be exact.
I believe the math works out like this...the 350 block with the 4 inch bore and a 400 crank with a 3.75 inch stroke will give 377 cubes.
pi x r x r x stroke x cylinders
3.1416 x 2 x 2 x 3.75 x 8 = 377
If the 350 is bored 0.030 over, the diameter of the bore would be 4.030 and combined with the 3.75 inch stroke, we'd get...
3.1416 x 2.015 x 2.015 x 3.75 x 8 = 383
pi x r x r x stroke x cylinders
3.1416 x 2 x 2 x 3.75 x 8 = 377
If the 350 is bored 0.030 over, the diameter of the bore would be 4.030 and combined with the 3.75 inch stroke, we'd get...
3.1416 x 2.015 x 2.015 x 3.75 x 8 = 383
kevin400ex
1/2 ton status
but i dont really see how the engine displacment relates to chrome shocks? 
Stomis
Professional Amateur
A 400 smallblock + a 350 crank is a 374 correct? So theres your stroke gains/loss finished. Add to it .030 bore and you get a 5 cube gain yielding 379. Am I missing something?
You need to get the idea that an .030" overbore = 5 c.i. That number is only accurate on a standard 350 Chevy V-8 engine with the stock bore and stroke. Different combinations of stroke and bore will result in different gains of displacement with a .030" overbore.
odin
1/2 ton status
Chrome shocks are over-rated. Now, chrome lift blocks -- as I said, in the front, particularly -- plus maybe chrome springs would really do the trick.
Though while we're on about engine parts, I think chroming the crank and the piston rings would really bring out the pimp...
-- A
Though while we're on about engine parts, I think chroming the crank and the piston rings would really bring out the pimp...
-- A
thealien
1/2 ton status
Good luck finding the shocks YOU are looking for. Very nice blazer you have there.
vortec
1/2 ton status
but i dont really see how the engine displacment relates to chrome shocks?
because the front chrome shocks increase the bore and the rear chrome shocks increase stroke. duh. bling bling, G.
