Join Date: Jan 2015
Location: Injun Territory, 'Merica!
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From all that has ever been recorded, a Pontiac 350 2bbl engine could not be combined with an M22 HD Muncie as an option. In PontiacLand, the M22 was optional behind 400 4-bbl & 455HO engines for only two model years...'71 & '72 & the M22 was extremely rare in 400 4bbl A bodys. It would be very interesting to note what your original build sheet has in the transmission & driveshaft boxes. The car being a convertible, will mean it was built out of Pontiac home plant, & the only place I've ever found an original Pontiac plant build sheet is between the carpet & the carpet underpayment on the passenger side of the floor hump. The original build sheet was uncovered in that spot on my HO Coupe T-37 & I know of a few '71 GTO's that also had their original buildsheet in similar spot. Note the Pontiac plant style build sheet is the small style build sheet, & if the car was factory carpeted, the resin from the tar type underlayment often darkened the build sheet, & it will have to be carefully cleaned by carefully soaking in a shallow bath of lacquer thinner.
For '71 model T-37's through LeMans Sports, the 350 2bbl came with a column shifted Saginaw 3spd standard. If one ordered a '70 1/2, '71, or '71 1/2 GT-37, the standard engine was the Pontiac 350 2 bbl, & the HD Muncie 3speed was used, along w a Hurst floor shifter. Same HD Muncie 3spd was standard equipment in a '70-72 GTO.
A 4speed was avail optionally behind the 350 2bbl, during the early 70's, but it was an M20 wide ratio Saginaw. Have owned several Saginaw 4spds out of rusty '71-73 72 Pontiac A-body's that I've parted. For about 6 years beginning in the late '80's I ran the national GT-37 Survey, advertising the survey in GTOAA "Legend" & POCI "Smoke". Since those early beginnings have recorded info on over eight hundred '71 & 71 1/2 GT-37's, of which the vast majority were 350 2 bbl cars.
Last edited by Pinion head; 01-31-2017 at 02:46 PM.