GT40 head questions

10578 Views 3 Replies 2 Participants Last post by FoxChassis, Dec 18, 2005

jason91notch

Discussion Starter · Dec 14, 2005

ok, so i just picked up a set of gt40 heads for extremely cheap. i was told they were off of a 94 lightning. now, i looked at the head database found on this site, and according to that the cobra heads have slightly bigger valves than the gt40 explorer heads. does anyone know if the lightning gt40 heads are the same as the cobras or explorers, or if theyre totally different? thanks

Save

Status: Not open for further replies.

1 - 4 of 4 Posts

FoxChassis

· #2 · Dec 14, 2005

All iron GT40 heads have the same size valves except the exhaust valve in the GT40P head.

GT40 = 1.84"/1.54" (intake/exhaust valve size)
GT40P = 1.84"/1.46"
non-GT40/P = 1.78"/1.46"

Save

jason91notch

Discussion Starter · #3 · Dec 17, 2005

FoxChassis said:
All iron GT40 heads have the same size valves except the exhaust valve in the GT40P head.

GT40 = 1.84"/1.54" (intake/exhaust valve size)
GT40P = 1.84"/1.46"
non-GT40/P = 1.78"/1.46"

ok, so which ones come on a 94 lightning then?

Save

FoxChassis

· #4 · Dec 18, 2005

Same as on the Cobra except with a larger combustion chamber.

Save

1 - 4 of 4 Posts

Status: Not open for further replies.

Top Contributors this Month