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large cams in stock cubes

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Old 01-23-2006, 09:40 PM
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Default large cams in stock cubes
If you are running a cam larger than ~236/236 what are you running and other than going to a different spring, I have 921's in the motor now, what changes to the valve train did you do?
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Old 01-23-2006, 09:46 PM
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I'm running over that but only on the exhaust side. All I changed as far as valvetrain was Comp 918's w/ Ti retainers and hardened pushrods...no issues after 8K daily driven miles
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Old 01-23-2006, 09:50 PM
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What cam are you thinking of running?

I run a big cam with Patriot Golds.
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Old 01-23-2006, 10:00 PM
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Originally Posted by Ωmega
What cam are you thinking of running?

I run a big cam with Patriot Golds.
Right now the front runner is the Trex. The motor is coming apart soon for forged bottom end so the 236/230 is coming out and something bigger is going in. I made good power with the current cam but it is time to step it up and see how far the ported LS1 heads will go. I have been looking and have seen only a couple larger than 236/236 so I just wanted to know what people were running with stock cubes and larger cams than mine.
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Old 01-23-2006, 10:00 PM
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i run a 242/248, have crane dual springs, tit retainers, hardened pushrods
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Old 01-23-2006, 10:05 PM
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Originally Posted by SMOKIN01TA
i run a 242/248, have crane dual springs, tit retainers, hardened pushrods
are you running the stock rockers?
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Old 01-23-2006, 10:06 PM
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Originally Posted by SMOKIN01TA
i run a 242/248, have crane dual springs, tit retainers, hardened pushrods
So do I, but your T/A makes mine look like a go-cart with a lawnmower engine!
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Old 01-23-2006, 10:07 PM
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of course, aftermarket ones suck seems like from results ive seen
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Old 01-23-2006, 10:12 PM
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How long will they take the lift on the Trex if you know?
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Old 01-23-2006, 10:24 PM
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Originally Posted by pushinfreight
How long will they take the lift on the Trex if you know?
you wanna ask that again in english

ima speculate here but are you confusing rockers and lifters
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Old 01-23-2006, 10:26 PM
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will the stock rockers take say 10k miles with a Trex or will they last more?
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Old 01-23-2006, 10:26 PM
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Originally Posted by Ωmega
So do I, but your T/A makes mine look like a go-cart with a lawnmower engine!
sorry
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Old 01-23-2006, 10:29 PM
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Originally Posted by pushinfreight
will the stock rockers take say 10k miles with a Trex or will they last more?
um, unless you drop needle bearings out some how they should last well beyond that
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Old 01-23-2006, 10:31 PM
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so with the Trex would you say spring choice is the biggest worry in general?
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Old 01-23-2006, 10:32 PM
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244/248 here. Your best net is the PRC duals, Patriot golds, or the Comp 921's.
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Old 01-23-2006, 10:33 PM
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Originally Posted by orangeapeel
244/248 here.
which cam is that?
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Old 01-23-2006, 10:33 PM
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Originally Posted by pushinfreight
so with the Trex would you say spring choice is the biggest worry in general?
yep, you get the wrong spring you can say byby to the motor or atleast the valves
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Old 01-23-2006, 10:34 PM
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Originally Posted by SMOKIN01TA
yep, you get the wrong spring you can say byby to the motor or atleast the valves
any reason to change from the 921's I have now?
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Old 01-23-2006, 10:35 PM
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Originally Posted by orangeapeel
244/248 here. Your best net is the PRC duals, Patriot golds, or the Comp 921's.
my cam speced out at 243.2/248.7 109.7lsa
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Old 01-23-2006, 10:38 PM
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Originally Posted by pushinfreight
any reason to change from the 921's I have now?
should be fine unless you have over say 10,000 miles on them, id change springs about every 15thousand with the trex
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