Question for guys running over a 300 shot...
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From: Gainesville, GA
Question for guys running over a 300 shot... Is it necessary to have oversized head studs put in? Let's say a wanted a 400 shot, and had a perfect tune for it. What kinds of modifications are necessary to the block to run these large shots?
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From: Grove City Ohio/Port Washington L.I sometimes
Re: Question for guys running over a 300 shot... I will be running a large shot and went with the big studs.The cylinder pressures will be insane with that big of a hit.Even with a perfect tune the cylinder pressure will want to lift the heads.I did it for extra insurance.O-ringed block and copper gaskets are necessary for that much spray.
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From: H-town
Re: Question for guys running over a 300 shot... i dont think you need over sized head studs but regular head studs from ARP will be fine. also o ringing the block and copper head gaskets is a must over 250 or so. and please dont do this with stock internals. special pistons and good rods are also a must. the stock crank should take the abuse fine. also you will need to spray it through a direct port system and not the intake or you will lean some cyliners out.
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From: Gainesville, GA
Re: Question for guys running over a 300 shot... Regular ARP studs will not hold. I think I'm going with the 9/16" studs if the deal goes through. Anybody know who makes a copper gasket for a 4.030" bore?
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Re: Question for guys running over a 300 shot...
Let's say a wanted a 400 shot
is all I can say....gimee a second........ok....damn Ryan...yah, I'd go w/larger diameter studs(for insureance), billet main caps, O-ring it, and use the CG's.
Still not convinced that even with 9/16" studs and rings you won't lift a head after the first 1/2 dozen hits after seeing what Bille's did w/good studs/rings and just a lil'(
) boost('member?), but I'm sure it's been done. As said, CP's are gonna be way up there.Don't recall anyone snapping a stock crank, but don't recall anyone hittin' one w/a 400 shot either. I'd be tempted to step up....
Damn son...4.030" hole...200 off the pad...200 at the 300' sounds like a woody to me
***...on a side note, I found the gremlin in the pewter pig..pulling the motor this weekend
I love a good excuse Keep us updated on the build up
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Re: Question for guys running over a 300 shot... I think it will hold if you set it up right. If you hit a 400 right at 3000 rpm it probably wont hold. But if you do 200 shot at 3000 rpm and another 200 at 4900rpm or something similiar., or even a progressive. It might hold. Im running a 300 shot for a total of 707 rwhp. But I limit the Tq by using a two stage system to around 750 ft/lbs max.
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From: Texas, it's like your state, but better.
Re: Question for guys running over a 300 shot... the GM copper gaskets work fine for a 4.03 bore. i can get them new from work if you need a set. thats what im using on mine. i think Al's right, it's just a matter of keeping it together the Dynamic compression is whats going to be the show stopper here.
and where are you guys getting these 9/16's studs?
and where are you guys getting these 9/16's studs?
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From: Gainesville, GA
Re: Question for guys running over a 300 shot... Good tip Al, about limiting the torque. I'll definitely be using Loc-wire copper gaskets. Someone on here was trying to get some custom 9/16" studs from ARP, but I dunno what happened to that, so looks like the 1/2" is gonna have to work.
Vince, you will be hearing from me when I need the gaskets, Thanks man
Mike B, spill the beans on the gremlin. I'll be charging $100 a ride when it's finished
Vince, you will be hearing from me when I need the gaskets, Thanks man
Mike B, spill the beans on the gremlin. I'll be charging $100 a ride when it's finished
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From: Texas, it's like your state, but better.
Re: Question for guys running over a 300 shot... i really think that the ARP half's will be fine. the guy that started all this head gasket lifting paranioa was in the 1000 RWHP range, and i personally dont expect to eclipse 800 w/ my DP setup (well, not yet ). and maybe you guys do 
thats why you're worried about it.
). and maybe you guys do thats why you're worried about it. Thread Starter
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From: Gainesville, GA
Re: Question for guys running over a 300 shot...
i really think that the ARP half's will be fine. the guy that started all this head gasket lifting paranioa was in the 1000 RWHP range, and i personally dont expect to eclipse 800 w/ my DP setup. maybe you guys do and thats why you're worried about it.
and thats why you're worried about it. 
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From: Gainesville, GA
Re: Question for guys running over a 300 shot...
Check with ARE, they can get you the copper gaskets, O ring your block, and hook you up on the bigger head studs.
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From: Grove City Ohio/Port Washington L.I sometimes
Re: Question for guys running over a 300 shot...
and maybe you guys do thats why you're worried about it.
thats why you're worried about it. 
.IMO someone running that much spray is asking for trouble with the 1/2 inch studs.It may stay together but for how long. 
Re: Question for guys running over a 300 shot... I wouldn't worry about the power as much as I would putting it to the ground and going down the track, that would be my main concern as the 1/2" studs and cometic steel shim graskets will hold just fine..Make sure you follow tq specs when bolting up the heads as ARP gives this info and check them often....