Hey everyone,
Wow, it's been a while since I was last here. hehe I've got an 84 T/A with the stock L69 305 motor with just over 120k miles on it.
The engine has become...basically an oil siv losing just over 2 quarts every 3k miles and I'm going to have it re-sealed (Not as good as rebuilding I know but money is a serious issue at the moment). While I'm at it, I was thinking of ways of improving the engines performance short of upgrading to a 350 and/or completely rebuilding the motor.
I've alread rebuilt the carb and added headers. I've also got a set of vortec heads from a 97 Silverado that are sitting on the floor of my garage and I've been thinking of putting them on the motor. I know the Vortec's are great heads, the only real problem I've found by researching is that I'll lose alot of compression because of their size.
My stock heads are 58cc (I believe) and these Vortecs are 64cc. What would I have to do to get the added performance that the Vortec heads would add while at the same time keeping my compression from going in the tank and losing it? I'd like to wind up somewhere around 9.1/1 or so (or at least close to stock if not a little better). Is it even worth the effort on a tired old 305 like mine to make an upgrade like this? Would I be better off to rebuild the motor to make it work or am I completely wasting my time and money on the 305?
Wow, it's been a while since I was last here. hehe I've got an 84 T/A with the stock L69 305 motor with just over 120k miles on it.
The engine has become...basically an oil siv losing just over 2 quarts every 3k miles and I'm going to have it re-sealed (Not as good as rebuilding I know but money is a serious issue at the moment). While I'm at it, I was thinking of ways of improving the engines performance short of upgrading to a 350 and/or completely rebuilding the motor.
I've alread rebuilt the carb and added headers. I've also got a set of vortec heads from a 97 Silverado that are sitting on the floor of my garage and I've been thinking of putting them on the motor. I know the Vortec's are great heads, the only real problem I've found by researching is that I'll lose alot of compression because of their size.
My stock heads are 58cc (I believe) and these Vortecs are 64cc. What would I have to do to get the added performance that the Vortec heads would add while at the same time keeping my compression from going in the tank and losing it? I'd like to wind up somewhere around 9.1/1 or so (or at least close to stock if not a little better). Is it even worth the effort on a tired old 305 like mine to make an upgrade like this? Would I be better off to rebuild the motor to make it work or am I completely wasting my time and money on the 305?