LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Cc306

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Old 07-27-2007, 04:38 PM
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who has the CC306 with stock heads and timing set??
Old 07-27-2007, 04:42 PM
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Im running stock heads but i also have an EWP and double roller.
Old 07-27-2007, 04:51 PM
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Originally Posted by Matts94Z28
Im running stock heads but i also have an EWP and double roller.
I have the same.
Old 07-27-2007, 04:58 PM
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Originally Posted by Matts94Z28
Im running stock heads but i also have an EWP and double roller.
ditto, but I have a 233/239
Old 07-27-2007, 05:01 PM
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im thinking of throwing one in the engine with 1.6 rockers and a new set of comp 918s and LS7 or LS6 lifters.
Old 07-27-2007, 05:45 PM
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Thats the same set up i have, I have been hearing rumors about the 918's having a couple of bad batches out there though. Get you a good set of hardened pushrods also. The swap will end up running you about $800 bucks new, but if you play your cards right i think you might be able to do it around $500. My CC306 might be for sale in a week or two!
Old 07-27-2007, 05:48 PM
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the 94 LT1 has hardened pushrods from the factory, and mine are straight as an arrow and un clogged. so im gonna keep em.

im gonna try and spend around $400 in parts the rockers used and maybe the cam.
Old 07-27-2007, 05:54 PM
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I have seen the stockers get bent a few times before. I found my TrickFlows for about 50 bucks used, but if you are comfortable with your stockers then stick with them. What rockers are you going to use? I found the roller tip 1.6 magnums work great. TPIS did a test a while back and the magnums were the only rocker arm they were not able to break. Just a little info for you.
Old 07-27-2007, 05:57 PM
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GM 1.6 RRs like from the LT4 hotcam kit.

if i come across some comp rods then ill stick them in there.
Old 07-27-2007, 06:05 PM
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CC306 stock timing set and no problems.
Old 07-27-2007, 06:35 PM
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Your goning to love the way that cam pulls past 3k. I love on ramps now!
Old 07-27-2007, 07:36 PM
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i love how this thing pulls to redline now. i can just imagine how it would be after
Old 07-27-2007, 08:29 PM
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It's a blast, thats for sure. I have spun mine to 7k a few times but i had to cut that out haha.
Old 07-27-2007, 09:06 PM
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i can leave my oil pump alone right?
Old 07-28-2007, 01:19 AM
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It depends on how your car is performing and personal preference. How is the oil pressure and does it ever drop off under WOT? How many miles are on your car and has the oil been changed on a regular basis?

I replaced mine because someone told me to run Gunk MotorFlush through it and it ended up clogging the pick up. Another cheap mod you could do is replace the oil pump drive with a metal one. I went to autozone and got one from an 85 pick up with a 350 and it worked just fine.
Old 07-28-2007, 10:35 AM
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20psi hot idle 40psi WOT

oil changed at 1500-2000 miles (i get bored) ive only put 6000 miles on it since i bought it.
Old 07-31-2007, 12:12 AM
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anybody chassis dyno after similar mods?
cam. RR 1:6's valve spring swap?
I have similar junk sitting on shelf waiting
Old 07-31-2007, 05:50 PM
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How does it do with stock heads?
Old 07-31-2007, 06:01 PM
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Originally Posted by Revelation Z28
20psi hot idle 40psi WOT

oil changed at 1500-2000 miles (i get bored) ive only put 6000 miles on it since i bought it.
sounds like mine when it was close to stock. I think you would be okay with that oil pump...but then again they are cheap. Take a good look at your cam bearings while you in there too...the stress from the stock water pump grooved mine a little.
Old 07-31-2007, 06:01 PM
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Originally Posted by vetman1
How does it do with stock heads?

The best time i have heard of on a stock headed stock suspension car with supposting mods was a 7.6x through a stalled auto


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