fratzog lover
Well-Known Member
Anyone remember these? Cant find any info on them, when they were made etc. My receipt shows a purchase date of 1993. Any info on these pistons is appreciated. Thanks.
Sealed power 8279 pistons for 360
- Thread starter fratzog lover
- Start date
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You might have an obsolete part #. Here you go. Hope this helps
http://m.summitracing.com/search/br...e/5-9l-360/engine-family/mopar-small-block-la
http://m.summitracing.com/search/br...e/5-9l-360/engine-family/mopar-small-block-la
fratzog lover
Well-Known Member
Thanks, it is still eluding me. Really want to know the compression height.
fratzog lover
Well-Known Member
The guy who built the car saved everything. The receipt is from Seaport Racing engines in Toledo Ohio. .040 over Sealed pro pistons were $112.00 in 1993. I think they must have stopped making them long ago. Time to pull the heads I guess.
nm9stheham
Well-Known Member
Yes, that looks like an old PN but not sure if it is direct interchange to the standard pistons. Get a pix and measure down from the deck. If they are the equivalent to the current Sealed Power 405's, then at TDC, the upper edge over the pin will be about .110" below an unmilled LA deck. (CH = 1.576")
Marcohotrod
Well-Known Member
I no longer have my old sealed power cat. but that is a cast stock replacement, so comp. distance is 1.580"
fratzog lover
Well-Known Member
Thats the number I was curious about. Thank you Marco and NM9. Any guesses how far in the hole? Block is factory height, was never decked.
nm9stheham
Well-Known Member
Yes the upper edge should be around .110" in the hole for a stock cast piston with 1.576" CH. Let us know what you find!
Marcohotrod
Well-Known Member
it is going to be about .110" down. and the full part is 8279P, supercedes to W405P
fratzog lover
Well-Known Member
Uh, less compression than I thought, thats what I will find! lol With 2.02 j heads its not what I thought, even though it runs very well. It has a comp xe268 cam, RPM intake and stock exhaust manifolds.
nm9stheham
Well-Known Member
Well, you might have the receipt... but what is actually in there? Maybe a camera would help.
Any idea if the heads were milled???
Any idea if the heads were milled???
fratzog lover
Well-Known Member
According to the machine shop paper work just line hone, 40 over bore, and crank machining. Nothing about the decks. Doesnt look like blueprinting was in the cards, just a street rebuild.
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