MD2028
01-15-2008, 09:17 PM
I hate to admit it, but I guess I qualify as a newbie (I just Registered). I bought a 79 CJ7 a few years ago and have modified just about everything except the 258. It runs perfect, but just doesn't have enough power for the occasional mudhole when running the trails.
I've picked up two 360s for nothing and next to nothing, but found both had major flaws and I'm trying to figure out the best combination of parts to use.
The 88/89 engine had a bad cylinder and piston. The 74 engine (head markings and heads appear original with no other block or valve cover tag indicators) looked like it pumped gravel through the oil system. It ran, but the crank will need more than just polishing. I see the newer 3233344 heads have a little more water passage than the 3220502-2 heads. There is also some variation in the connecting rods.
I'll have to use the older block, but I don't know which heads and rotating assemblies to use.
It'll get new pistons. I was hoping for a little bump in compression (9.0-9.5 at most), but from what I've read, piston choices are minimal at best unless I want to fry my credit card.
I've got a Holley Truck Avenger and Performer Manifold to go with a Performer Cam along with all of the basics for a proper rebuild.
I've built a couple of big Mopar engines in the past, but I'm a little new to AMC and I'm open for suggestions.
I've picked up two 360s for nothing and next to nothing, but found both had major flaws and I'm trying to figure out the best combination of parts to use.
The 88/89 engine had a bad cylinder and piston. The 74 engine (head markings and heads appear original with no other block or valve cover tag indicators) looked like it pumped gravel through the oil system. It ran, but the crank will need more than just polishing. I see the newer 3233344 heads have a little more water passage than the 3220502-2 heads. There is also some variation in the connecting rods.
I'll have to use the older block, but I don't know which heads and rotating assemblies to use.
It'll get new pistons. I was hoping for a little bump in compression (9.0-9.5 at most), but from what I've read, piston choices are minimal at best unless I want to fry my credit card.
I've got a Holley Truck Avenger and Performer Manifold to go with a Performer Cam along with all of the basics for a proper rebuild.
I've built a couple of big Mopar engines in the past, but I'm a little new to AMC and I'm open for suggestions.
