'70 heads
Thread Starter
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Senior User
Joined: Dec 2007
Posts: 161
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From: Liberty, Idaho
Not a bad vehicle to have. Good info on the heads. Thanks.
i havent heard anything about them, but id ask down in the small block V8 forum
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
The early 351 heads are a good candidate for a low budget DIY porting job, they have slightly larger valves than the later castings so they will flow more when ported. The '90's GT40 castings are a better flowing head before porting however, and have more potential with porting.
Thread Starter
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Senior User
Joined: Dec 2007
Posts: 161
Likes: 0
From: Liberty, Idaho
The early 351 heads are a good candidate for a low budget DIY porting job, they have slightly larger valves than the later castings so they will flow more when ported. The '90's GT40 castings are a better flowing head before porting however, and have more potential with porting.
Thank ya sir! I guess I'll keep looking for an affordable set of GT40's. In my searching for 40p info, it looks like the p's flow a bit better than the standard GT40. Does anyone know of a set of headers that are compatible with these heads that do not need dropped everytime you change the plugs? Can you mill these heads .030 for higher compression without problems?
