I need to know specs on a set of gt40 cylnder heads

I got a set of gt40 cylnder heads off a 96 ford exployer... they have the 3bars in them so there not the p type... what i want to know is what size the valves are , size of combustion chamber , size of runners intake and exhaust.. if anyone knows anything that would be ausome...thanks

I can only run flat top pistons.. and any factory production cylnder heads... in my 351w.. in the class i am in i can only run 351w and smaller engine.. so if anyone know how to get some power out of this thing let me know... and i have to pull 15 in lb of vacuum at 1000 rpm's...

Probably a better question to post on a SBF site?

I got a set of gt40 cylnder heads off a 96 ford exployer... they have the 3bars in them so there not the p type... what i want to know is what size the valves are , size of combustion chamber , size of runners intake and exhaust.. if anyone knows anything that would be ausome...thanks

Google gt40P heads and you will find a lot of info on the net.
Also check this link
http://www.mustang50magazine.com/techarticles/4379_gt_40p_heads/index.html

I'd say your better off with a stoker 347.. Depends on the cam you can use.. RPM desired, ect..

How much HP are ya looking for?

I got a set of gt40 cylnder heads off a 96 ford exployer... they have the 3bars in them so there not the p type... what i want to know is what size the valves are , size of combustion chamber , size of runners intake and exhaust.. if anyone knows anything that would be ausome...thanksThey have 1.840/1.540 valves, with 64-66cc chambers. Intake runner volume is proabably about 140cc. They flow about 185-190cfm on the intake.

Why not go with the 69-70 351w head?

funny I find this thread, my brother is selling his worked '70 windsor heads, I just have not got around to putting them up on the block. These are DOOE 351 castings, we had a local port the heads some years back, flow sheet is long gone but these heads went a 10.90 on a n/a 306" in a 3000# hatch.

They were just freshened up, stainless 1.90 1.60 valves, springs are new I think, 3/8" guideplates and studs. I think he even has the comp alum roller rockers and stud girdle for them.

The GT-40 series of heads still out flows the older 351W heads.

Ok i got a set of heads gt 40 for 300. what should i do to them to get some preformance out of them...port polish valves?

Here's a good link on small block heads
http://www.allfordmustangs.com//Detailed/630.shtml

I never found a forum where anybody has ever tried the jegs/kasse heads for a small ford i bought them 4 years ago and their still in the box under the spare bedroom bed the writeup in MMFF magazine said they flowed 345/242@700 lift i always wanted to try them but now i'm a big ford nut.

Want ta sell em?

Ok i got a set of heads gt 40 for 300. what should i do to them to get some preformance out of them...port polish valves?Good valve job and blend the valve job into the short turn. How much camshaft are you planning on using?.