[whaleyracing]

is the sealpower 8 valve relase pistons any good for a mild build

[shiftydr]

Wait for it..............

[rexs73gto]

Well,,,,,, there ahhhhh well ,,, ok but very heavy & the comp. will be down & the burn factor is at best ok.

[54nomore]

Look into Clevite (formerly Perfect Circle). I think they still offer a conventional replacement piston (4 valve relief).
I'm going off foggy memory from a few years back

Ron.

[PunchT37]

Originally Posted by shiftydr

Wait for it..............

Ok, I'll bite.

I would put one on a stick with a pivot pin, mount the piston face down, and use it for a poo poo scooper.

[54nomore]

Never mind. Clevites are 8 VR also.

[screamingchief]

Worst possible piston choice,so a waste of good $$$$.

Down in the hole a bunch,and then all that extra valve relief/bevel volume,nah nothing desirable about that.

Wont use KB hypers either.

Just calling things like I see 'em.

HTH

Bret P.

[69FIREBIRD76MM]

Originally Posted by whaleyracing

is the sealpower 8 valve relase pistons any good for a mild build

forged yes cast--maybe

[gtofreek]

Those "pingers" are the worse possible choice for a piston for a Pontiac. You will lower the compression, loose a bunch of power, and be MUCH more likely to detonate with them. As far as I'm concerned, NOBODY should have ever made those pistons. Just another case of after market companies trying to make universal parts instead of parts to fit a specific application. Much like what Crane Cams does to us Pontiac people. One size fits all is not the way to go with engine parts!

[Ben M.]

They are perfectly fine for a stock rebuild that isn't seeing any serious power and you have to save as much money as possible (by them being free). But I wouldn't pay any money for a set when for a few bones more you can get much better quality pistons.

[whaleyracing]

this is what im building 77 400 30 over crain 454 l 216 d 6x 8 cut 35 y off them stock intake smi qjet ram air manfold 350 turbo step over stok converter 342 gear in a 81 ta

[72LuxuryLeMansLa.]

Originally Posted by whaleyracing

this is what im building 77 400 30 over crain 454 l 216 d 6x 8 cut 35 y off them stock intake smi qjet ram air manfold 350 turbo step over stok converter 342 gear in a 81 ta

I'm no expert but I would use these if every dollar counts: http://www.summitracing.com/parts/sl...w/make/pontiac

But I would always spend a couple hundred more and get these:http://www.racetecpistons.com/at_pro...ntiac_Flat.htm

As PunchT37 stated the 8v junk pistons are best for scooping crap or as an ashtray.

[screamingchief]

Originally Posted by 72LuxuryLeMansLa.

As PunchT37 stated the 8v junk pistons are best for scooping crap or as an ashtray.

Nah,,,,when I pull them outta a core engine,,,I'll keep them to melt 'em down to fill the exhaust cross-overs in OE iron heads...

That's the absolute best use for them IMHO.

HTH

Bret P.

[gtofreek]

Originally Posted by screamingchief

Nah,,,,when I pull them outta a core engine,,,I'll keep them to melt 'em down to fill the exhaust cross-overs in OE iron heads...

That's the absolute best use for them IMHO.

HTH

Bret P.

LOL! That's for sure!