LIL D

as i was told to use gt40 heads ported to achieve my goal of 300 rwhp using a e303 cam cobra intake 1.7 rockers 65 mm t body and a 73 mm maf on a 306. but has anyone ever had a valve clearance issue using the 1.7rr with the stock valve size of cast iron gt40 heads

90Lxstanger

I dont think you should have problems, im 100% positive though, good luck

africkanV6

that will give you 300rwhp?

burning the tiers

that should give u atleast 310 hp and i would go with a 70mm throttle body incase you did some more work on the car this way theres no restricton if you want more power and so you dont have to buy another one
good luck

AdderMk2

1.7's WILL NOT fit under stock valve covers, unless you remove the baffles

Hung Like a Stang

can you get the tall style covers? How big of a cam can you go with with 1.7 rockers and GT40's anyone know?

drhoward

can't you just use cobra valve covers, didn't they come stock with 1.7's?

LIL D

i plan on removing the baffles thanks the info guys

2 kwik

first I doubt it will make 300 rwhp maybe in the 270 range...they make the double like valve covers gaskets for added clearance...

LIL D

im just trying to get close unless there is something someone else suggests cause i got to keep wit ped mount heads and what kind of bearings and gaskets should i use for my motor