PSI 8.8 liter / 550ci ???
10-25-2022 | 01:34 PM
#11
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From: St. Pete Beach, FL
Larry will tell you to go with a PSI shortblock. He sells them. It's a better than stock block. Also has a bigger bore. 4.350" vs GM 8.1 @ 4.250". Only real downside is that it has 1/2 x13 main cap bolts and no windage tray provision vs GM8.1. GM main cap studs are 12mm and cannot be used on PSI block.
If wanting to run a windage tray setup in a performance PSI 8.8 block you need ARP main studs and align hone accordingly.
If wanting to run a windage tray setup in a performance PSI 8.8 block you need ARP main studs and align hone accordingly.
10-25-2022 | 01:56 PM
#12
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From: Dawsonville, GA
Larry has done great things with the gen7 engines... but I can build a budget shortblock for substantially less by doing it myself.
10-25-2022 | 02:13 PM
#13
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From: St. Pete Beach, FL
Ive swapped a few emails with Larry at Raylar... and will eventually buy heads/cam/intake from him... but I typically prefer to do my own assembly work and have machine work done locally. It saves me a ton of money and I have my hands on it every step of the way. Been building engines for over 35 years now.
Larry has done great things with the gen7 engines... but I can build a budget shortblock for substantially less by doing it myself.
Larry has done great things with the gen7 engines... but I can build a budget shortblock for substantially less by doing it myself.
10-25-2022 | 02:27 PM
#14
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From: Dawsonville, GA
Larry will tell you to go with a PSI shortblock. He sells them. It's a better than stock block. Also has a bigger bore. 4.350" vs GM 8.1 @ 4.250". Only real downside is that it has 1/2 x13 main cap bolts and no windage tray provision vs GM8.1. GM main cap studs are 12mm and cannot be used on PSI block.
If wanting to run a windage tray setup in a performance PSI 8.8 block you need ARP main studs and align hone accordingly.
If wanting to run a windage tray setup in a performance PSI 8.8 block you need ARP main studs and align hone accordingly.
I like to stud everything I build thats not a bone stock application. Ive seen main caps walk around too much on bolted stuff.
I will watch ebay for a PSI motor. Seems like that makes the most sense for a rebuildable core. I can scrap the top end and still be ahead of the game by just using the shortblock.
10-25-2022 | 03:28 PM
#16
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From: Dawsonville, GA
10-25-2022 | 04:16 PM
#17
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From: Portland OR
FYI Trey at River Speed and Marine is in with PSI and building up the Gen 7 platform. He has PSI blocks and cranks available to sell.
He's in development of the LS platform heads for the Gen 7 that Chevy developed and never brought to production. It would be worth calling him.
He's in development of the LS platform heads for the Gen 7 that Chevy developed and never brought to production. It would be worth calling him.
10-26-2022 | 08:45 AM
#18
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From: Tygart Lake, WV
FYI Trey at River Speed and Marine is in with PSI and building up the Gen 7 platform. He has PSI blocks and cranks available to sell.
He's in development of the LS platform heads for the Gen 7 that Chevy developed and never brought to production. It would be worth calling him.
He's in development of the LS platform heads for the Gen 7 that Chevy developed and never brought to production. It would be worth calling him.
10-26-2022 | 10:38 AM
#19
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From: Delray Beach, FL
The PSI rotating assembly is a great base. The big question is are you doing the HO600 or the HO525 package?
Somebody post the link/picture of the River Speed and Marine heads. Are they compared to the Raylar stock aluminum heads or the Raylar racing CNC heads?
FWIW, the Raylar heads were designed by Reher-Morrison and 10 years ago, I dropped them off at 2 places to port them and everybody knew the story behind them and insisted that the only thing they would do is screw them up. That was 10 years ago but they are pretty decent bang for the buck.
Somebody post the link/picture of the River Speed and Marine heads. Are they compared to the Raylar stock aluminum heads or the Raylar racing CNC heads?
FWIW, the Raylar heads were designed by Reher-Morrison and 10 years ago, I dropped them off at 2 places to port them and everybody knew the story behind them and insisted that the only thing they would do is screw them up. That was 10 years ago but they are pretty decent bang for the buck.
