aluminum heads bbc

castle5 · 05-04-2008, 01:11 PM

im thinking of buying aluminum heads for my 454 LS6. mark 4 motor. i want to use the gm heads #12363400 rectangle port open chamber. what head gaskets do you guys use. is there any horsepower increase. than iron rectangle port heads. id like the weight savings of aluminum..any pros or cons to these..thanks tom

Bob Pagano · 05-05-2008, 11:02 AM

NHRA head is 12363408 the last 3 casting # 401 on the head

rx dealer · 05-05-2008, 01:14 PM

castle 5, I have a set of "401" castings by C.F.E complete and ready to bolt on. These heads are super stock legal. Call me 248-342-3117 Luke

05-05-2008, 11:02 AM	#2
Bob Pagano VIP Member Join Date: Jun 2002 Location: New Holland, PA Mooresville,NC Posts: 1,163 Likes: 238 Liked 16 Times in 11 Posts	Re: aluminum heads bbc NHRA head is 12363408 the last 3 casting # 401 on the head __________________ Bob Pagano A/SA

05-05-2008, 01:14 PM	#3
rx dealer Member Join Date: Mar 2007 Location: Lake Orion, Michigan Posts: 337 Likes: 12 Liked 53 Times in 13 Posts	Re: aluminum heads bbc castle 5, I have a set of "401" castings by C.F.E complete and ready to bolt on. These heads are super stock legal. Call me 248-342-3117 Luke

05-04-2008, 01:11 PM	#1
castle5 Junior Member Join Date: Nov 2005 Location: indiana Posts: 39 Likes: 0 Liked 1 Time in 1 Post	aluminum heads bbc im thinking of buying aluminum heads for my 454 LS6. mark 4 motor. i want to use the gm heads #12363400 rectangle port open chamber. what head gaskets do you guys use. is there any horsepower increase. than iron rectangle port heads. id like the weight savings of aluminum..any pros or cons to these..thanks tom