Seems to be a lot of people swapping GT40s on. And there is a little bit of question as to chamber size and all of that. Maybe start collecting some info about casting dates and chamber sizes?
Can you tell I'm bored?
Mine are as follows:
16D6: 16 April, 1996 casting Chamber size unknown Head bolt size: 1/2"
29E6: 29 May, 1996 Chamber size: unknown Head bolt size: 7/16"
Yup. Mine are mismatched. Just figured that out. I'll have to cc the chambers and see if they are also different.
Stroppe'd 1972 Sport, 302, 3 speed with old school Duff floor shifter, T shift Dana 20 with JB Fab twin stick, 4.11 gears with Trac-loc, Lincoln hydroboost, Chevy disc conversion, WH gas lift gate shock kit, 33" Duratrac tires on slots and about 2.5" of lift, Stroppe installed: bumper braces, dual shocks on all four corners, GM power steering, trans cooler mount, auto shift column, rollbar.
The Terrible One 1972 Sport uncut, 302, C4 with 1974 column , T shift Dana 20, 3.50 gears w/ limited slip, 1966 U13 Roadster kick panel, and factory power steering.
I just got one of the 96 Explorer GT40 heads cleaned here is what I have so far 19Feb1996, no other numbers that I could find like 6090. Notice the stamp in picture #3 stating Mexico? WTH is that. I'm not sure how to check chamber size I will just ask Western Motors when I get them re-worked. 19Feb1996
I found another set of number's on the second head as I was cleaning them this morning, the look to be different? Looks like GT6C1 >8B2
Any how came across this cc chart.
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Last edited by Strike2 on Thu Jan 19, 2017 8:49 am, edited 1 time in total.
