Aftermarket Pistons for LS7?
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Aftermarket Pistons for LS7? Putting together a list of parts to build a 427" motor, who makes off the shelf pistons to work with LS7 heads? Also, do the ETP LS7 heads need LS7 pistons, or do they work with standard LSX pistons?
Thanks!
Thanks!
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Originally Posted by Stang's Bane
Katech make LS7 pistons, I think Diamond may have some now. Yes, the ET heads would work better with LS7 pistons. The valve angle and placement is different. Good luck!!
Originally Posted by DanZ28
Thanks! I saw Katech offered them on their LS2 427, but couldn't find them seperatly on their website. Probably need to cal them..
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Originally Posted by SLED28
I can get you Wiseco off the shelf with the 1/16 1/16 3/16 ring stack. Made 571rwhp with a 427 setup and GMPP LS7 heads at 11.5:1.
Thats some nice HP using stock LS7 heads. I am hoping for something in the 600ish whp with a bit more compression, ported LS7's and maybe a sheetmetal intake.
BTW, how much is shipping on a shortblock from cananda to Cali?
Pistons and rings are right around $800. Your quite aways from me.. But shipping shouldn't be more then $450-500. Don't forget the GM LS7 heads are cnc'd to 250cc runners. The ETP LS7's are also VERY nice. The cam that made the 571 was a low 240's mid 250's cam with a inverted lobe. With a touch more compression and a cam change 600 should be reachable. BTW, How many miles on that 347 now ...
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Originally Posted by SLED28
Pistons and rings are right around $800. Your quite aways from me.. But shipping shouldn't be more then $450-500. Don't forget the GM LS7 heads are cnc'd to 250cc runners. The ETP LS7's are also VERY nice. The cam that made the 571 was a low 240's mid 250's cam with a inverted lobe. With a touch more compression and a cam change 600 should be reachable. BTW, How many miles on that 347 now ...
.I have 3100 miles on my 347...
Dan
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Originally Posted by DanZ28
Thanks! I saw Katech offered them on their LS2 427, but couldn't find them seperatly on their website. Probably need to cal them..
We have 11:1, 12:1 and are working on 9:1 and 14:1 pistons for the LS7. We also have an 10.5:1 and 11:1 for a 6.100 rod. Most in 4032 and 2618 material. All hardcoat anodized with big valve pockets. Download our catalog of some items not seen on our website.
http://www.katechengines.com/street_...g_portrait.pdf
