is it going to be a decent setup?
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Member
Joined: Oct 2001
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From: southington, ohio usa
is it going to be a decent setup?
motor:
350 4bolt
comp cam xe262h
vortec heads (not machined)
vortec performer intake manifold
headers (havent chosen yet)
rochester q-jet carb
stock stall converter
tranny/rear:
700r4 w/ b&m shift kit
3.42 posi rear
i tore it apart again, i have a lot of time. I got rid of the 4.10's. i traded them for the 3.42's. Will the stock stall converter be sufficient? will the motor self destruct. With this setup is should have somewhere around 300hp right? tell me if theres anything i should give special attention to.
350 4bolt
comp cam xe262h
vortec heads (not machined)
vortec performer intake manifold
headers (havent chosen yet)
rochester q-jet carb
stock stall converter
tranny/rear:
700r4 w/ b&m shift kit
3.42 posi rear
i tore it apart again, i have a lot of time. I got rid of the 4.10's. i traded them for the 3.42's. Will the stock stall converter be sufficient? will the motor self destruct. With this setup is should have somewhere around 300hp right? tell me if theres anything i should give special attention to.
Supreme Member
Joined: Dec 2001
Posts: 1,532
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From: Nebraska
if you can hang on, later tonight I'll give ya the details on how to get 400hp wiht the vortec heads and intake. it was an article in CHP. I'll have to dig it out though. I'll get it to ya tonight or tommorow
Member
Joined: Nov 2000
Posts: 490
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From: Mt. Home, ID
Car: 1986 IROC
Engine: 305 going to 355
Transmission: 700R4
Originally posted by 87transam5.7tpi
if you can hang on, later tonight I'll give ya the details on how to get 400hp wiht the vortec heads and intake. it was an article in CHP. I'll have to dig it out though. I'll get it to ya tonight or tommorow
if you can hang on, later tonight I'll give ya the details on how to get 400hp wiht the vortec heads and intake. it was an article in CHP. I'll have to dig it out though. I'll get it to ya tonight or tommorow
Mark
Senior Member
Joined: Apr 2000
Posts: 860
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From: Alberta, Canada
Car: 1987 IROC
Engine: Vortec 350 TPI
Transmission: 7004r
that 400hp from CHP is crank hp btw, and I don't think they ran any accesories like water pump, alternator, powersteering pump etc. when they dynoed it. a street engine probably wont as much as CHP is claiming, but 300-320 rwhp won't be difficult to attain with a vortec 350 (~380 crank hp)
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Is there any particular reason for going with the Vortec heads? They're okay, but not necessarily the best choice.
Valve lift is limited to .450", which that cam exceeds - spring/retainer upgrade required. The heads also have press-in studs; okay typically, but screw-in much better for high lift/high RPM durability. They require self-aligning rockers, available but more expensive. You already know you need a special intake.
By the time you pay for all of the "special" Vortec needs, you could get a set of World Sportsman IIs that flow as well as or better than the Vortecs, and don't have those "special" problems.
You'd probably benefit from a higher stall TC.
Valve lift is limited to .450", which that cam exceeds - spring/retainer upgrade required. The heads also have press-in studs; okay typically, but screw-in much better for high lift/high RPM durability. They require self-aligning rockers, available but more expensive. You already know you need a special intake.
By the time you pay for all of the "special" Vortec needs, you could get a set of World Sportsman IIs that flow as well as or better than the Vortecs, and don't have those "special" problems.
You'd probably benefit from a higher stall TC.
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