Forged 5.3 Pistons?

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Originally Posted by nighthawk

the difference between the 4.8 and 5.3 is in the stoke. the bore is the same. to compression will be differenent with the same pistons, but they should work.

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And I think the 4.8 has flat tops where the 5.3's are dished. Could be wrong on that though.

As much I wanna say you are wrong....but you are correct madam.

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Originally Posted by txarkitekt

As much I wanna say you are wrong....but you are correct madam.

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:duh:

interesting I'm going to have to look into this some more..

the 5.3L HO is the only one that has flat top pistons

sweet setup, should make awesome power.

how come there is poor fuel distribution just to #7 when pressure in liquids is always even throughout the entire volume of the liquid?? (i paid attention that day in class) is the rail getting starved by the time it gets to that last injector, so theres still pressure in there just the amount of fuel is down or something? it just doesnt make sense to me that its a fueling issue... seems more likely that its either getting more air or more heat than the others... or for whatever reason making more power therefore putting more stress on it??? or an oiling issue??

just kinda thinking out loud....

Quote:

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Originally Posted by nighthawk

the difference between the 4.8 and 5.3 is in the stoke. the bore is the same. to compression will be differenent with the same pistons, but they should work.

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Duh. The difference between a 327 and a 350 is the stroke so the pistons DON'T interchange (without a different length rod). If the stroke changes and the rod does not the pin height must move in the piston hence the 4.8 will never use the same pistons as a 5.3 without changing to custom rods which would mess up other geometry.

and isnt a 327 a 5.3 and 350 5.7?

No.

A 327 is 4.00 X 3.25
A 350 is 4.00 X 3.48