Vortec Heads Flowed with 2.02/1.60 Valves
04-08-2014, 08:34 PM
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Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Vortec Heads Flowed with 2.02/1.60 Valves
Here are the results.
What you guys think?
What you guys think?
04-09-2014, 08:05 AM
#2
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Re: Vortec Heads Flowed with 2.02/1.60 Valves
Great numbers and on a 170cc intake. I am not sure what you have into them price wise but posts like this should make anyone even considering junk like procomp run for the hills. The best increase is on the exhaust side. usually the vortecs are weak on exhaust flow but it looks like that has been fixed.
04-09-2014, 08:26 AM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Vortec Heads Flowed with 2.02/1.60 Valves
Great numbers and on a 170cc intake. I am not sure what you have into them price wise but posts like this should make anyone even considering junk like procomp run for the hills. The best increase is on the exhaust side. usually the vortecs are weak on exhaust flow but it looks like that has been fixed.
04-09-2014, 04:24 PM
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Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Vortec Heads Flowed with 2.02/1.60 Valves
A ZZ9 cam will be used with Siamesed Edelbrock runners, Dyno Don Headers, ported Vortec base, 24lbs injectors, 52mm TB, 700r4 and 3.23 gears in a 91 Z28. Chip will be tune by Kevin91z at the Dyno.
04-09-2014, 04:35 PM
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: Vortec Heads Flowed with 2.02/1.60 Valves
Sounds like it will be a strong runner.....Looking forward to dyno charts when it gets dialed in. Sounds like it should be in the 350 RWHP range if not a little more.
04-09-2014, 04:50 PM
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Car: 1990 G92 IROC Z Miniram
Engine: 388cu 6.4 Liters
Transmission: G-Force T5
Axle/Gears: 3.73 Gears
Re: Vortec Heads Flowed with 2.02/1.60 Valves
Oh yea! It also has dual cats and a 3in Magnaflow cat-back exhaust system. The A/C and all the smog stuff will be on and working.
04-09-2014, 05:19 PM
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Car: 87 IROC
Engine: L31 350
Transmission: T56
Axle/Gears: 4.10 D44
Re: Vortec Heads Flowed with 2.02/1.60 Valves
@ Vincent - What did the porting cost? Who did it? And is it available to anyone?
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04-09-2014, 06:19 PM
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Vortec Heads Flowed with 2.02/1.60 Valves
I did the porting to the intake and exhaust, Dr. J did the valves and bowl work.
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