Jonboy2389

hello, just wondering if any1 could provide me with the specs for stock cylinder heads on an 89 mustang gt, intkake volume, chamber size, etc. also can i get the specs on gt40 heads i would like to compare, thanxx alot!!!

mjr46

the only real diff that'll mater is valve size!! e7's 1.78/1.45 gt-40 1.84/1.54

Jonboy2389

ight cool wat size chambers are on both of those???

mjr46

i believe 64cc

67mustang302

http://users.erols.com/srweiss/tablehdc.htm

Knock yourself out, it's prolly all there.

Jonboy2389

yeh i think yur right it 64cc. im just tryna see the difference ibetween heads, another thing is what gt40 heads do i need to stay away from to avoid the header problems im hearing about, i plan on upgrading my stock headers to bbk equal length headers,thanxxx

Jonboy2389

another thing too wats the chamber size on the e7 heads i think it 60 cc. but i juss wana double check... thanxxx

Jonboy2389

o yeh any chance u can get me the intake volume for the e7 and the gt40 heads, thanx mannn, much appreciated.

mjr46

like I said with stock stuff that shty doesn't matter..cause the bottom line is you won't make much power with e7 in stock form N/A and chamber is 64 not 60

Jonboy2389

yea im doin the fcam and i was guna try and sneak by using the stock heads but ill end up buyin the gt40 heads off my buddy, then get teh explorer upper and lower intake, then get my new pistons 24 lb. injectors, cold air intake ets. cuple more things what gt40 heads are the problems wit the headers opr spark plug wires getting in the way, and do you think im guna need a chip for the followiung mods, new stock pistons and rings gt40 heads gt40 upper and lower intake, 24 lb. injectors , ford 1.6 lifters, f303 cam, bbk pulleys, bbk 255 fuel pump, bbk cold air intake, bbk equal length headers, 2.5 full exhaust no cats, 3.73 gears, not shure of the throttle body i kno it repalced but might have to go bigger wat size throttle body would be good for all that wat size maf would be good for that, and do you think ill need any kind of chip for all that, i also got a fiber glass 4inch cowl hood and short throw shifter, with 16 inch pony wheels, any idea what i could be running for times??? thanxxx