L78 Dyno - The Supercar Registry

04-08-2015, 08:28 PM

VintageMusclecar VintageMusclecar is offline

Senior Member

Join Date: Jul 2003

Posts: 3,369

Thanks: 183

Thanked 186 Times in 48 Posts

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.

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT. The time now is 08:52 PM.

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.