LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

is a carbed LT1 shortblock different?

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Old Oct 12, 2008 | 05:43 PM
  #1  
jeremy stanke's Avatar
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is a carbed LT1 shortblock different?

i am looking at a LT1 shortblock that is for sale. the motor used to be carbed, my question is this. am i going to run into any problems running this fuel injected again? it doesnt have any heads or intake now, so could i just add a LT1 intake and heads and be good to go?
Old Oct 12, 2008 | 05:52 PM
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It should be fine, though you need the oil pump drive, optispark and might want to know what cam is in it.
Old Oct 12, 2008 | 05:56 PM
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when you say carbed do you mean the early 70's LT1?

do you know the difference?

just checking
Old Oct 12, 2008 | 06:10 PM
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jeremy stanke's Avatar
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i think it has this cam
Comp Cam Solid Roller (Custom grind) (248/252 635/645 lift)
what is the oil pump drive?

no i dont know the differences but it was built recently so i dont think its the older one
Old Oct 12, 2008 | 09:39 PM
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The oil pump drive is what you have to install to drive the oil pump on a normal LT1 (since there is no rear mounted distributor to drive it).

http://shbox.com/ci/oil_pump_drive.jpg
Old Oct 12, 2008 | 09:46 PM
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oh ok are they expensive or hard to install?
Old Oct 12, 2008 | 09:55 PM
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Originally Posted by jeremy stanke
oh ok are they expensive or hard to install?
No harder to install than a distributor (but intake must be off).

GM PART # 1103868

GM LIST: $76.73
GM Wholesale PRICE: $45.49
Old Oct 12, 2008 | 10:08 PM
  #8  
jeremy stanke's Avatar
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oh ok, this is the block. does it sound pretty good?

385 LT1 short block built by Kowalsky machine out of Lynchburg Va (www.kowalskymachine.com)

internals are:
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 (included with auction)

Machine work done:
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

parts included:
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 shot
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