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aluminum heads

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Old 12-29-2005, 09:06 PM
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Car: 1984 Z28
Engine: L69 305 HO
Transmission: 5 speed manual
Axle/Gears: Auburn pro yukon 3.73 gears and axl
aluminum heads

What is the difference between the 14101128 aluminum heads and the 10088113 heads
Old 12-29-2005, 09:43 PM
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Car: 1986 Irocz
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.25:1
14101128...86-87...350..........Aluminum, 58cc, angle plug

10088113...88-up...350..........Aluminum, 58cc, angle plug, raised
"D" port exhaust, 1.94"/1.5" valves


taken from this site:
http://www.mortec.com/castnum.htm

The 113 is obviously the newer and probably improved design. I'm not sure on the exact improvements though.
Old 12-29-2005, 10:16 PM
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Car: camaro sportcoupe
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the D shaped exhaust ports flow better...but both need port/polish work to be optimized...and they work REALLY well when they are ported!
Old 12-29-2005, 10:32 PM
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Join Date: Sep 2003
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Car: 1984 Z28
Engine: L69 305 HO
Transmission: 5 speed manual
Axle/Gears: Auburn pro yukon 3.73 gears and axl
Yeah I run the 113 heads and I was reading some old hotrod stuff and saw the numbers, and wondered what the diff was..........
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