I'M FINALLY GOING TO INTALL MY GT40P . THEY HAVE SPRINGS AND VALVES. BUIT NO ROCKERS OR PUSHRODS. . WELL BASICALLY BARE MINUS VALVES AND SPRINGS. WHAT WOULD I NEED TO SWITCH THEM WITH MY E7'S. AND CAN I USE ANYTHING OFF THE E7'S ON THE GT40P'S. IM SICK OF MY SLOW 5.0- AUTO. WOULD THESE HEADS AND TF STAGE 1 CAM AND 4:10 MAKE A NOTICABLE DIFFERENCE.

 

yes......I would have the spring pressure set to your cam spec....the tfs 1 is a nice duall pattern cam also gasket match the heads

 

THKS, DO I NEED TO GET NEW PUSHRODS, LIFTERS, ROCKERS? OR CAN THE E7'S WORK?

 

you can use them but check them......I would however if your budget lets you to invest in some 1.6 roller rockers or some 1.7's for some added lift

 

I would replace as much as you can afford while you're in there. You don't want something to crap out in a few weeks when you could have just replaced it to begin with.

 

Those 3 things will make a ginormous difference, you won't be able to stay out of the gas.

 

do u think those mods will bring into the low to mid 14's

 

Depending on your driving skills and your tires, that coud get you high 13's.

 

my wife's run 13.70's in her 89 stock heads,etc even stock exhaust