I want the best head that GM makes for a 383 that will give me at lest 320 Hp maybe more?
Thanks

 

get a vortec. A vortec 383 will make 350 hp with all but the mildest cam.

 

CHP built a 383 with Trick Flow 23* heads and got over 400 hp with ease. They are 64 cc.

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Mark Lock
- 86 IROC-Z - My car, mods and ET's
- -= IROC Online =- - The site dedicated to the IROC-Z

[This message has been edited by lock (edited September 21, 2000).]

 

A 67cc head with a 9.1cc head gasket and a .015 inch deck height will make 10.25:1 with flat-top pistons.

A 64cc head would be better suited to an engine with a .030 inch deck height. I've heard good things about the Iron Eagle heads, as far as flow-ability versus cost, as well. you can use ANY SB intake on it, versus the Vortechs which require a special intake.


------------------
Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines,
5-point racing harness, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Speed-sensitive steering conversion, underdrive pulleys, Crane Hi-6 & more. 1.05g skidpad verified.
New best E/T! 14.400 at 98.6 MPH in 88 degree air at Stanton, Michigan.

 

best head gm makes for that is the fast burn. at that hp range a simple 882 will cut it though.