Looks like we lost all posts, so I start it again.
I bought a running 340/904 off ebay for $275 sight unseen (did see a video though) so it was a gamble but the price was right, so I couldnt go wrong. Anyway I picked it up this weekend and started pulling it apart to find some crazy stuff I've never come across. Apparently it was a race motor at one point in time. Just wondering if anyone has any info on these parts, and how streetable it would be or how to make it streetable. The former owner had no idea what was in it as he bought the car with the motor and had driven in every sunday for about 5 months before pulling it out to drop in a 383. He said it was topped with what he thought was a 650 carb and was running 89 or 92 octaine. He said it ran good and was quick but it was running exhaust manifolds, go figure.
Anyway, I found double springs, adjustable rockers, aluminum blocks for shaft holdowns, opened pushrod holes and stainless 2.02 intake and stainless exhaust valves. Also there was a fair amount of porting to a TM5 Edelbrock intake and port matched to the intake side of the head, he went so big on the intakes that its into the valve cover bolt holes.
There was also a valey pan and TRW L2322 high dome forged pistons, one of which has damage. But all the cylinder walls still have crosshatch, no lip that I can feel and the pistons were intalled real loose. Even the cylinder with the damaged piston looks great and there are no signs of the pistons piece. So here are some pictures, tell me what you think.
Also what carb size would be good wth a setup like this and what kind of fuel is needed. Could I get away with a thicker head gasket and running 94 plus octaine booster or would it require a blend of 94 plus race fuel, is so whats a good ratio. This was ment to be a good temporarry beater motor till I can afford to build a nice strocker in a couple years and will see limited use mainly on the street, just a fun car.
Opinions welcome.
Butch
I bought a running 340/904 off ebay for $275 sight unseen (did see a video though) so it was a gamble but the price was right, so I couldnt go wrong. Anyway I picked it up this weekend and started pulling it apart to find some crazy stuff I've never come across. Apparently it was a race motor at one point in time. Just wondering if anyone has any info on these parts, and how streetable it would be or how to make it streetable. The former owner had no idea what was in it as he bought the car with the motor and had driven in every sunday for about 5 months before pulling it out to drop in a 383. He said it was topped with what he thought was a 650 carb and was running 89 or 92 octaine. He said it ran good and was quick but it was running exhaust manifolds, go figure.
Anyway, I found double springs, adjustable rockers, aluminum blocks for shaft holdowns, opened pushrod holes and stainless 2.02 intake and stainless exhaust valves. Also there was a fair amount of porting to a TM5 Edelbrock intake and port matched to the intake side of the head, he went so big on the intakes that its into the valve cover bolt holes.
There was also a valey pan and TRW L2322 high dome forged pistons, one of which has damage. But all the cylinder walls still have crosshatch, no lip that I can feel and the pistons were intalled real loose. Even the cylinder with the damaged piston looks great and there are no signs of the pistons piece. So here are some pictures, tell me what you think.
Also what carb size would be good wth a setup like this and what kind of fuel is needed. Could I get away with a thicker head gasket and running 94 plus octaine booster or would it require a blend of 94 plus race fuel, is so whats a good ratio. This was ment to be a good temporarry beater motor till I can afford to build a nice strocker in a couple years and will see limited use mainly on the street, just a fun car.
Opinions welcome.
Butch
