347 stroker opinions????
02-02-2007, 11:36 AM
#12
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RE: 347 stroker opinions????
I think ur builders not all there no reason for a forged crank on a stock block. That block will split after 500hp and that girdle will only hold it together so maybe u can salvage some of the internals. As already stated its either forged or cast never heard of anything else.
02-02-2007, 11:50 AM
#13
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RE: 347 stroker opinions????
I know the girdle is there to mainly keep your internals from getting destroyed if your split the block and since I have a warranty on the engine, I'd not overly concerned. He's built a ton of motors and mine is, I think, a '69 302. I saw the engine yesterday and it's without question thicker than what's in the car now.
02-02-2007, 11:53 AM
#14
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RE: 347 stroker opinions????
I agree with you there it is thicker but its still a 2 bolt main so theres its down fall. If ur going over 500 then aftermarket block is the only comon sense thing to do. Why spend thousands on a stock block just to watch it split??
02-02-2007, 12:03 PM
#15
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RE: 347 stroker opinions????
ORIGINAL: bouchermb
I'm doing a 347 stroker, with Canfield 195 heads, Camshaft Innovations custom grind comp cam, a Vortech 5 psi SC, Pro M 90 MM MAF, 70 MM TB, 42 lb. inj., TFStreet upper/lower intake, a 255 lph FP, and Vortech t-rex external FPand my engine builder recommended a forged or at the very least a cast forged crank. I'd go early model 302 block at the least and get the block girdled. I have pretty much all the other standard mods as well. Headers, 3" mandrel bent custom x-pipe, MSD ignition, suspension mods, gears, pulleys, electric fan, aluminum rad, etc.
The guy whose building the engine said I should be fine up to aboput 650 RWHP. My recommendation is go with top quality parts and do it right the first time.
I'm doing a 347 stroker, with Canfield 195 heads, Camshaft Innovations custom grind comp cam, a Vortech 5 psi SC, Pro M 90 MM MAF, 70 MM TB, 42 lb. inj., TFStreet upper/lower intake, a 255 lph FP, and Vortech t-rex external FPand my engine builder recommended a forged or at the very least a cast forged crank. I'd go early model 302 block at the least and get the block girdled. I have pretty much all the other standard mods as well. Headers, 3" mandrel bent custom x-pipe, MSD ignition, suspension mods, gears, pulleys, electric fan, aluminum rad, etc.
The guy whose building the engine said I should be fine up to aboput 650 RWHP. My recommendation is go with top quality parts and do it right the first time.
Get yourself an aftermarket block and up that boost!
02-02-2007, 12:07 PM
#16
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RE: 347 stroker opinions????
he wont see 5PSI on that 347 anyway prolly 3PSI maybe,, need to get you a new S/C too that lil vortech prolly doesnt flow enough to really help out that much, but if yo uare staying with a stock block then i bet if you just up the boost you will like it!
02-02-2007, 12:12 PM
#17
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RE: 347 stroker opinions????
Probably not a bad idea and if I blow this thing up, that's what I'll do. It's primarily a street car, so I won't be ragging on it too hard. I was told it couyld handle 10 psi, but I might get different pulleys and get it back up to 5 psi or so.
Does that make sense?
Does that make sense?
02-02-2007, 12:15 PM
#18
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RE: 347 stroker opinions????
ORIGINAL: bouchermb
Probably not a bad idea and if I blow this thing up, that's what I'll do. It's primarily a street car, so I won't be ragging on it too hard. I was told it couyld handle 10 psi, but I might get different pulleys and get it back up to 5 psi or so.
Does that make sense?
Probably not a bad idea and if I blow this thing up, that's what I'll do. It's primarily a street car, so I won't be ragging on it too hard. I was told it couyld handle 10 psi, but I might get different pulleys and get it back up to 5 psi or so.
Does that make sense?
02-02-2007, 12:26 PM
#19
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RE: 347 stroker opinions????
ORIGINAL: bouchermb
They do make some sort of crank that's a combo. It's better than a pure cast crank, but not as expensive as forged. I probably got exactly what it's called wrong though. They guy whose building my engine gave me a warranty up to 650 on the early model block, and did say a Mexican block is stronger, and obviously SCAT blocks or others like it are stronger than these, but a hell of a lot more expensive. The early model blocks are thicker than the late model one's though.
The guy who recommended the T-Rex, Isaw run a10.5 with the same fuel deliveryset up, and does testing for companies on optimal for delivery, so I'm comfortable with his recommendation. The engine builder does tons of race engines, so I disagree with you on selecting another builder. He knows his stuff.
They do make some sort of crank that's a combo. It's better than a pure cast crank, but not as expensive as forged. I probably got exactly what it's called wrong though. They guy whose building my engine gave me a warranty up to 650 on the early model block, and did say a Mexican block is stronger, and obviously SCAT blocks or others like it are stronger than these, but a hell of a lot more expensive. The early model blocks are thicker than the late model one's though.
The guy who recommended the T-Rex, Isaw run a10.5 with the same fuel deliveryset up, and does testing for companies on optimal for delivery, so I'm comfortable with his recommendation. The engine builder does tons of race engines, so I disagree with you on selecting another builder. He knows his stuff.
A T-Rex is a 190lph pump. If you put it in front of a 255lph intank, it's a bottleneck. If he does testing for companies on optimal fuel delivery and runs that setup, the companies will soon be bankrupt. If your engine builder warranties stock blocks to 650rwhp, he'll soon be bankrupt too. Of course, he could warranty it to 1000rwhp. If the customer isn't going to make the power, what's to worry about?
02-02-2007, 12:28 PM
#20
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RE: 347 stroker opinions????
im really surprised that they are going to warranty your engine,, most shops will not warranty anything high performance, esp if it is s/c'd also that ****ty lil insurance warranty they sell will not pay for anything cept a few parts and maybe the rotating assembly if it blows up and you will have way too much money in it and will be pissed if it dies, so take your time make sure your engine can handle it then do it up good, save for the dart block i got mine pricematched at summit for 2100$ not a bad investment since i will prolly see 800+ FWHP