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-   -   L78 pistons (https://www.yenko.net/forum/showthread.php?t=132056)

luzl78 04-27-2015 10:12 PM

L78 pistons
 
Would you guys reuse original standard bore Pistons from a 67 l78 or should I get new Pistons from a new source. Stock 391 heads but a 5535 l88 cam might be used.

VintageMusclecar 04-28-2015 12:15 AM

Re: L78 pistons
 
If there is even the slightest bit of bore wear I wouldn't even consider putting one back together with OEM pistons, but that's just my opinion. Ring seal is critical to performance and longevity, and w/o honing with a torque plate (which is something the factory did not do back in the day) the cylinder walls will never be straight, round & true in operation.

Even if you tried to hone the block with a torque plate now, by the time you got the bores straight you'd have too much piston to wall clearance.

Again...just my opinion.

luzl78 04-28-2015 12:40 AM

Re: L78 pistons
 
Eric, I understand.


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