L78 Pistons

Micheal · #1 01-25-2011, 09:05 PM

Where are you L78 guys buying your pistons from?I'm restoring a L78 70 chevelle.

Thanks,Micheal

Micheal · #2 01-25-2011, 10:08 PM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Micheal</div><div class="ubbcode-body">Where are you L78 guys buying your pistons from?I'm restoring a L78 70 chevelle.

Thanks,Micheal </div></div>

I would like to stay close to stock comp. If possible.I can't seem to find any piston.

Chevy454 · #3 01-27-2011, 08:52 PM

Any piston manufacturer on the planet has an L78 blueprint...TRW L2242F NF, CP "C3-CP", JE 1"93518"...pick your poison!

**JRSully** · #4 01-27-2011, 11:47 PM

Speed Pro makes/made a good replacement,don't know if they still are

**Bill Rose** · #5 01-28-2011, 05:52 AM

I put the Speed Pro's in my L-78 El Camino. My machinist had a set in stock that was made in the USA, but he said some of the new ones were imported, and the quality was down. It might be worth looking into.

**Donnie** · #6 01-28-2011, 06:14 PM

Bill,
whats the part number on that box?

**Bill Rose** · #7 01-29-2011, 04:56 AM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Donnie</div><div class="ubbcode-body">Bill,
whats the part number on that box? </div></div>
Not sure what the part number is Donnie. I took that pic at the machine shop one day, when I was checking out the progress. The pistons are 30 over. I'll find the paperwork and email the part number. Assuming I can find it.

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