here are pics of the heads off my 91 titanium auto supercoupe
the engine was overheated big time, all 3 cylinders were blown on the driver side and cylinders 2 & 3 were blown on the driver side, so effectively it was a 1 cylinder lol but it was so warped that I had to shave 15 thousandths off just to get her flat again
anyway, i pulled the heads with the intentions of just resurfacing them and slapping on mls gaskets....
well after i was done sand blasting them and cleaning them up good, i pressure checked the valves and all 12 were leaking BADLY.
So i started disassembling them, when i pulled the first valve i checked the guide and it was so loose that I had about 20 thousandths worth of play
Needless to say all of the guides were worn extensively.
so since it needed to be sleeved i figured i might as well go with larger valves. Well it didn't stop there, once the valves were done it just didn't make sense not to port the heads
so heres the final outcome. They haven't been flowed yet but i know it flows alot better than before, hoping to use a friends flow bench to find out the truth.
anyway my main point was that if this combo does prove to give some substantial gains there just may be a few more sets done
but first i want to see what kind of power these things make, i may throw them on my bone stock 94 5spd and throw it on the dyno, its completely unmolested so it would be a great test specimen. However unfortunately I do not have any prior dyno pulls from the car so it wouldn't be quite exact but enough to get an idea.
if anyones interested shoot me a PM
the engine was overheated big time, all 3 cylinders were blown on the driver side and cylinders 2 & 3 were blown on the driver side, so effectively it was a 1 cylinder lol but it was so warped that I had to shave 15 thousandths off just to get her flat again
anyway, i pulled the heads with the intentions of just resurfacing them and slapping on mls gaskets....
well after i was done sand blasting them and cleaning them up good, i pressure checked the valves and all 12 were leaking BADLY.
So i started disassembling them, when i pulled the first valve i checked the guide and it was so loose that I had about 20 thousandths worth of play
Needless to say all of the guides were worn extensively.so since it needed to be sleeved i figured i might as well go with larger valves. Well it didn't stop there, once the valves were done it just didn't make sense not to port the heads
so heres the final outcome. They haven't been flowed yet but i know it flows alot better than before, hoping to use a friends flow bench to find out the truth.
anyway my main point was that if this combo does prove to give some substantial gains there just may be a few more sets done
but first i want to see what kind of power these things make, i may throw them on my bone stock 94 5spd and throw it on the dyno, its completely unmolested so it would be a great test specimen. However unfortunately I do not have any prior dyno pulls from the car so it wouldn't be quite exact but enough to get an idea.
if anyones interested shoot me a PM
