LS1TECH - Camaro and Firebird Forum Discussion

LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: Which Cam would you rather go with in your car
GM847
10
40.00%
CC306
15
60.00%
Voters: 25. You may not vote on this poll

Which Cam would you choose for your car

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Old 02-26-2009, 07:29 PM
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This thread is full of fail.

PS: wtf are .40 over heads ?? O.o
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Old 02-26-2009, 07:47 PM
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if i was planning to use nitrous id go 306 for n/a id use the 847
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Old 02-26-2009, 10:15 PM
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Originally Posted by Puck
This thread is full of fail.

PS: wtf are .40 over heads ?? O.o
I hope he meant the heads were milled 40 thousandths.

BTW to the OP these cams will not work with LS1's at all!
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Old 02-26-2009, 10:20 PM
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Gm-847
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Old 03-06-2009, 04:41 AM
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Originally Posted by MadMike 97 Z28
I hope he meant the heads were milled 40 thousandths.
I hope he didn't!
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Old 03-06-2009, 04:15 PM
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I like the 847 myself. Local guy has it in his Bird and it sounds mean as hell and has been reliable so far
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Old 03-06-2009, 04:49 PM
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Originally Posted by MadMike 97 Z28
Nice story bossman wanna tell the truth now! superchip?! really?! you belong in a mustang my friend!




I agree with this guy I only went with gm847 because I got a great deal on a NIB one. But IMO the cc306 duration is too much on exhaust, too little on intake, and the lift is too small.

CC306 --- 230@ .510 INT/ 244@ .540 EXT (1.5RR)--- 112 LSA --- 1800-5800
GM847 --- 234@ .539 INT/ 242@ .558 EXT (1.5RR)--- 112 LSA --- 2000-6800

ok if this s the valve lift for the gm847 with 1.5RRs, what would be the valve lift with 1.6RRs,,i ve got valve springs with maximum .600in valve lift
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Old 03-06-2009, 05:40 PM
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Originally Posted by monster81
ok if this s the valve lift for the gm847 with 1.5RRs, what would be the valve lift with 1.6RRs,,i ve got valve springs with maximum .600in valve lift
Divide by 1.5 then multiply that by 1.6.

Originally Posted by RamAir95TA
I hope he didn't!
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Old 03-06-2009, 09:38 PM
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.575/.595

pretty close to the raggid edge for a .600" spring IMO, check with lloyd, he can get you a custom cam for only a couple bucks more than an off the shelf cam and it will work with your parts and goals
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