Firebird stock internals question
Thread Starter
Teching In
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Firebird stock internals question Hey you all i tried searching a lil and came to the fact the rods and crank will hold like 550rwhp stock?
i was wondering bone stock off the showroom floor how much RWHP i could throw at these safley?
thanks for your help
i was wondering bone stock off the showroom floor how much RWHP i could throw at these safley?
thanks for your help
Thread Starter
Teching In
Joined: Feb 2005
Posts: 10
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Originally Posted by Texas_WS6
No Idea here. I only make a wopping 350 rwhp. what is your definition of hanlding? 100000 miles? One track season? One track day?
doesn't harlan have more than 1000 FWHP on his stock crank? everything depends on how you drive. I could see 500RWHP on stock rods and crank with ARP bolts. However, I don't even make 350RWHP yet so i'll let some people chime in on this before I misinform you.
It will handle I think that much, but I would expect to go into it every other year, depending how much you run it hard. Will it brake with that much power? Yes, when, who knows, but I bet you can get a season out of it. With that much power at the rear wheels, you will have bigger problems with the rear end, and transmition. I shoot 150 shot on top of my motor. It dynoed 457rwhp with the shot. I broke my trans two months ago while not shooting the juice to it. But I had at least 30 passes on the juice before it broke. I had the trans modded bigtime and expect to not have problems with it with anything under 700 rwhp. But I do expect to go into the trans once a year if I ever reach that kind of power. As for my rear end, its held up good, but I do have traction problems. My best 60' has been 1.8, Once I get the traction under control and with this new cam and the 150 shot on it I bet I destroy the rear end. My motor never had a valve cover off it until last weekend when I installed the new cam. Everything in it was stock till last weekend. I bought it new and put the juice to it within a few weeks after buying the car. I drive the **** out of it every time I get in it. I use to work offshore and drove it to work 750miles one way every weak, looking for anyone to race along the way. Been threw 3sets of tires on the rear of the car, hit 150+ mph on the highway at least 50 times. It now has 67000+ miles on it. All of wich are driving like a mad man. I have a 408 build going on for right now, but I plan on giving the factory motor hell until the 408 is finished next year. I do not expect to see it let loose on me, but it could happen.
So I would say, your good to go with the engine but look out for trans and rearend trouble with that much power.
So I would say, your good to go with the engine but look out for trans and rearend trouble with that much power.
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Joined: Feb 2003
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The crank should be okay. The rods should take it pretty well too. No guarantees.... How do you plan to make that power? The factory pistons might not like it, and you should look into aftermarket rod bolts, especially if you plan to rev very high (>6500) and/or get an earlier model LS1. (98-00)
True, I think the 01's and later came with the better rod bolts. Actually from what I understand, the only difference from the LS1 and LS6 rods were the bolts, if thats true then you should at least consider them.
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