I have a blue 1972 V-156 in pretty good shape ...
Came with a 1971 65 HP Merc w/o T&T and did about 35 mph on gps (4th hole out on trim) but was burning prop from cavation.
Put a rebuilt 1994 60 HP Johnson with T&T on three years ago and am getting 40 + mph on gps.
Glastron started building V-156's in 1967 with the "Aqua Lift II" hull, a tri-hull with a V pad stern, single front bow seat, curved windshield and twin stern grab handles ...
By 1972 Glastron changed the deck with squared windshield, twin bow seats, removed the stern grab handles and upgraded interier trim, don't think hull was changed ...
In 1977 Glastron changed the name to T-156, which made more sense then calling it a V ...
Seats changed and some trim peices, LOA and beam stayed the same ...
In 1978 the LOA grew 6" and beam grew 4", HP rating went from 85 to 100 HP and the name changed to T-160 ...
In 1979 name changed to T-159, spec's stayed the same as 1978 ...
From 1976 on there were T-166's which was the longer and wider hull with fancy interiors and in latter years MF gell.
In 1980 there only model was the T-159 which was the fancy T-166 XL with all the bell's and whistles
Looks like there was no models in 1981 and 1982 but in 1983 a T-162 showed up, and lasted until 1985 ...
There was some "Fish & Ski models in certain years also ...
It was there best selling model for many years and they made like 50,000 of em' ...
Nice little boat that dose every thing well but not a great ride !
Would like to hear from some one with a newer 90 to 115 HP motor on how hull handles over 50 mph.