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GT750 Port timing heights
Posted: Sun Jun 26, 2016 10:31 pm
by jaycee69
Hi all! i was wondering, was 1977 a stand alone year for port timing height? or were 75, 76 and 77 all the same. im asking because i have a 1977 cylinder and all i can find to re sleeve it is a sleeve for a 1976. i know the port timing changed in 1975 i was wondering if it changed again or 75 was the only change?
Re: GT750 Port timing heights
Posted: Sun Jun 26, 2016 11:36 pm
by Alan H
J, K were same, L, M were same and A, B were same AFAIK.
Re: GT750 Port timing heights
Posted: Mon Jun 27, 2016 5:12 am
by old racer
Not quite right,
The J.K.L.were the same.Porting was changed in 75 and continued with the same through 76.77.
Re: GT750 Port timing heights
Posted: Mon Jun 27, 2016 7:03 am
by tz375
Correct Old Racer.
JAycee, if you don't mind sharing, who has liners in stock or can supply them? LA Sleeve used to list them IIRC.