Cast iron L98 heads Vs. Aluminum L98
01-07-2001, 02:16 AM
#1
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Cast iron L98 heads Vs. Aluminum L98
Are the cast iron L98 heads identical to the aluminum L98 heads, or is ther some flow differants.also are the bolt angles the same on both heads. i need some good heads for my 406.
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when the green flag drops the bull$hit stops
Curent: 350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast
Spring 01: 406, Comp 282 solid cam, 2400 stall converter, every thing else the same.
[This message has been edited by GOLD85 (edited January 07, 2001).]
------------------
when the green flag drops the bull$hit stops
Curent: 350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast
Spring 01: 406, Comp 282 solid cam, 2400 stall converter, every thing else the same.
[This message has been edited by GOLD85 (edited January 07, 2001).]
01-07-2001, 07:57 AM
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Car: '00 Chevrolet Corvette
Engine: LS1
Transmission: 4L60E
Axle/Gears: 2.73
Not sure about differences in flow, but I do know that the aluminum L98's have 58cc combustion chambers as opposed to 64cc on the cast iron ones and pre-87 carbeurated style intake bolt angles.
-Mark W.
'88 SC Camaro w/ 305 TBI
-Mark W.
'88 SC Camaro w/ 305 TBI
01-08-2001, 12:34 AM
#3
The Aluminum L98 heads flow better than the iron ones, but for a 406 I'd definitely get the AFR 190 heads.
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1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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