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Thread: how does this shortblock sound?
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10-12-2008, 10:17 PM #1
how does this shortblock sound?
385 LT1 short block built by Kowalsky machine out of Lynchburg Va (www.kowalskymachine.com)
Scat forged 4340 crank 3.75 stroke
Eagle 5.7" H beams
JE forged pistons (12.5:1 w/64CC heads) 4.040"
SpeedPro hell fire rings
Program billet 4 bolt mains with ARP main studs
all coated bearings (std size)
Cloyes Hex-a-just double roller
Melling HVLP oil pump with welded on pickup for Milidon pan machine work
4.040 bore and hone
line honed
true 4 bolt block
rings gapped for nitrous
0 decked
lifter valley holes tapped and filled with pipe plugs and vent tubes to prevent windage
front and rear drain plugs screened
Milidon 7qt oil pan
SFI damper (pro products)
COMP cams custom grind solid roller cam installed and degreed in
24X*/25X* 63X"/64X" ( the lift is with a 1.65 intake and 1.75 exhaust rocker)
motor was almost the same before the rebuild and made 562HP and 527TQ at 6700 with 11.5:1 compression on motor on the engine dyno but is built for up to a 300 shotLast edited by jeremy stanke; 10-12-2008 at 10:43 PM.
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10-12-2008, 10:33 PM #2Long Live the Opti
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10-12-2008, 10:37 PM #3
i was thinking about something from LE or AI
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10-12-2008, 10:44 PM #4Long Live the Opti
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10-12-2008, 11:53 PM #5
ya 11.5 was probably made with aftermarket heads. if you go with a stock head your CR will be way to high to run on pump gas. e85 on the other hand...
DD: 01 RCLB Duramax 500hp/1000tq
Project 95Z: cam, nitrous, stuff...
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10-13-2008, 07:08 AM #6
they were running stock heads ported to 300cc but it was converted to a carb at the time
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10-13-2008, 07:49 AM #7Long Live the Opti
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10-13-2008, 08:25 AM #8
thats what they said, here is the link
http://www.camaroz28.com/forums/showthread.php?t=509570
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10-13-2008, 09:18 AM #9
Yeah the shortblock sounds good...like stated thats a little high compression for a pump gas motor. If you want a race only setup this would be good.
If you want to keep it on pump gas with this setup...your tuner will hate you
Other than the compression being too high looks like a good setup...if you can find a corvette block (4-bolt) that will save you some bucks. I paid $400 to have my 2 bolt block converted to splayed. If you cant find a vette block cheaper than that just get the splayed mains.
7.10ET 88mph 1/8th (old setup)
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10-13-2008, 09:22 AM #10Long Live the Opti
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Ok, the stats on the heads that he posted don't mean jack. 300CFM at .650 lift means squat. What's the intake runner volume, what's the combustion chamber size, ect. What he gave doesn't help you out at all. Something else about that motor that didn't look right: he's saying HP peaked at 6700 RPM by what he stated. That's a bit shallow given the supposed size of the setup with that cam. That thing should peak closer to 7K+ I think.
On to your setup, if you go with the above motor you originally posted, I think a set of LE or AI Ported Trick Flow heads that are NOT milled down would probably do you quite nicely.
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