L78 Dyno - The Supercar Registry

04-08-2015, 09:28 PM

VintageMusclecar VintageMusclecar is offline

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Re: L78 Dyno

The bores are definitely past spec. It's evident the bores were worn before the last rebuild and rather than boring the block, they knurled the pistons and just honed the bores.

Not a good recipe for good ring seal and longevity.

I would bore & hone the block .030" and go with new pistons.

Rather than further derail John's thread, shoot me a PM or an email and we'll discuss things in further detail.

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