Any thoughts on this setup?
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From: Gloucester, Va
Car: 1987 IROCZ
Engine: 355, Vortec Heads, Carbed
Transmission: TH350, 2800 stall
Axle/Gears: 3.27 9 Bolt
Any thoughts on this setup?
I'm thinking about doing a carbon copy of what was done in this article, any thoughts on what it might run or anything that should be done different?
http://www.popularhotrodding.com/eng...ock/index.html
All comments welcome!
http://www.popularhotrodding.com/eng...ock/index.html
All comments welcome!
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
A rebuilt vortec motor with
With a camshaft that was;
I have a hard time arguing with Vizard, but i'd prefer to use a split pattern cam. Then again, I can't argue with Vizard.
Especially after his next comment Sounds good, but I wouldn't expect the 447HP that they got. Expect maybe 380HP at the crank, since it's not being photographed for a magazine. The cameras add 50+ HP ya know.
hmm, 232cfm at .500" is about right for box stock vortecs, 232 @ .600" lift for aftermarket "better" vortecs seems a bit low.
cast-iron CH350C Lightning cylinder heads from Enginequest. These heads are essentially Vortec replacements, sharing many features with the excellent OEM Vortec heads, but sufficiently improved in ways that would help achieve more power than the stock Vortecs
We had frequent PHR contributor David Vizard spec our cam, and he selected a custom COMP Cams hydraulic roller single-pattern grind, with 224 degrees duration (at .050) on the intake and exhaust lobes, and 0.352 inch lobe lift. David specified a relatively tight 108-degree lobe separation angle,
Especially after his next comment
I've been spec'ing cams for 20 years, I haven't been wrong yet, but then again, maybe i'm due
EQ heads feature intake ports measuring 180 cc, representing a moderate volume, well-suited to a 350-cube powerplant. The port form was nicely executed, delivering 232 cfm at a useable 0.600-inch lift with a 1.94-inch intake valve
Last edited by Sonix; Mar 7, 2007 at 11:40 AM.
Thread Starter
Junior Member
iTrader: (2)
Joined: Feb 2006
Posts: 77
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From: Gloucester, Va
Car: 1987 IROCZ
Engine: 355, Vortec Heads, Carbed
Transmission: TH350, 2800 stall
Axle/Gears: 3.27 9 Bolt
Yea i was thinking the same thing about the horsepower, any ideas on what this could run in the 1/4? I have a th350 w/ a 2800 stall behind it going through a stock 9 bolt with stock L98 gears (3.27 I'm guessing)
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Joined: Nov 2002
Posts: 472
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From: Washington State
Car: '84 Berlinetta
Engine: ZZ4
Transmission: BTOD stage 3
Axle/Gears: 3.23 posi disc
You mean a stock 10 bolt, right? Or did a bolt fall out somewhere along the line?
Sounds like a solid build, what was the total cost or did they say? Fast burn crate engines are going for under 5000 these days, plenty fewer headaches....
Sounds like a solid build, what was the total cost or did they say? Fast burn crate engines are going for under 5000 these days, plenty fewer headaches....
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iTrader: (1)
Joined: Jul 2004
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
9 bolts were used in his year. Australian rear end somehow.
That should cut a high 12 quarter mile. It'd be quick that's for sure.
That should cut a high 12 quarter mile. It'd be quick that's for sure.
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