Vortec Heads, good/bad
01-13-2004, 07:23 AM
#1
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Car: 89 GTA
Engine: 350 LT1
Transmission: T56
Vortec Heads, good/bad
Chevy Hi perf Mag, says the stock iron vortec heads can produce 400hp stock..
Does anyone use these? Will they bolt up to an older block? how about headers? any trouble there? I kno wthe intake would have to be different..
Thanks.
Does anyone use these? Will they bolt up to an older block? how about headers? any trouble there? I kno wthe intake would have to be different..
Thanks.
01-13-2004, 11:57 AM
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Car: '82 Z28
Engine: 350HO
Transmission: M4
lots and lots of people use them, myself included.
they bolt to a regular block, headers bolt right up, they need a special intake.
do a search, there is tons and tons of information about them
they bolt to a regular block, headers bolt right up, they need a special intake.
do a search, there is tons and tons of information about them
01-13-2004, 12:17 PM
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i've heard and seen lots of build ups using vortech heads with great hp and tq numbers. deffintly the best head for the money if you are willing to buy the special intake, reach really isnt much more then the standard head intakes.
01-13-2004, 12:38 PM
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Car: '89 IROC-Z
Engine: Canfield 195 headed 358ci
Transmission: TH350, Art Carr 9.5"
Axle/Gears: 3.92 Dana 44
You can make more than 400HP with them stock with the right parts 
01-14-2004, 03:20 PM
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Car: 86 firebird with 98 firebird interi
Engine: pump gas 427sbc Dart Lil M 13.5:1
Transmission: Oldani TH400 w/ BTE 9" convertor
Axle/Gears: 31 spline Moser/full spool/4.11Rich
Well if you do the flow math of what they are capable of producing it equals 492.34hp. How accurate that equation is I have no idea
But for the money and the fact they flow very good at low lift makes them a definate bang for the buck that goes beyond the typical magazine hype. Leave the valve size alone and just do some port work on the exhaust side for starters unless your really good at head work and 4-450hp is easily attainable on pump fuel.
But for the money and the fact they flow very good at low lift makes them a definate bang for the buck that goes beyond the typical magazine hype. Leave the valve size alone and just do some port work on the exhaust side for starters unless your really good at head work and 4-450hp is easily attainable on pump fuel.
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