I'm tearing down the motor that came in this truck that I bought back in the early summer: http://www.forabodiesonly.com/mopar/showthread.php?t=62220
My plan is to freshen it with rings and bearings (if all is well inside) and put it in my 74 Dart Sport-gonna-be-a-71 Duster project. It ran good.
This is what I've found so far: The 915's are ported, have 2.02 intakes,
Crane Gold Rollers, big valve springs and retainers (unknown). I haven't removed any valves yet. There is a "J" cast on the bottom. Disregarding the unknown value of the porting work, are these good heads?
It has a stock crank, stock rods (.010/.010). I've only looked at a couple bearings, they don't look too bad. I'm going to plastigauge them. The rods have been ground for balancing (7 of them), and it has a windage tray. I haven't looked in the oil pump yet. The pistons appear to be .030 KB190's. (10.5:1) They have the shorter quench dome of the two part numbers I found. I don't have them out yet, but there is no ridge, and I can see cross hatch. I'm going to cc the heads, check the deck height (Do I measure around the edge, not on the dome? Never checked any except flattops.), the gaskets were FelPro blue. I want to figure the comp ratio and see if I can get more by cutting the heads, or block, or both. I'll check piston to valve and cut the pushrods.
It has a double roller chain and the cam appears to be a .509 purple shaft. The lift at the lobes X 1.5 = between .507 and .513. It has purple paint between the front two journals. The numbers 970406 on the back end of it, if that helps. Is this a purple shaft? I know there are better cams, but I have it and plan on someday, building a 408, so it'll do for now.
If I can run this with just bearings, rings, gaskets and some decking, that'd be great. Thoughts?
My plan is to freshen it with rings and bearings (if all is well inside) and put it in my 74 Dart Sport-gonna-be-a-71 Duster project. It ran good.
This is what I've found so far: The 915's are ported, have 2.02 intakes,
Crane Gold Rollers, big valve springs and retainers (unknown). I haven't removed any valves yet. There is a "J" cast on the bottom. Disregarding the unknown value of the porting work, are these good heads?
It has a stock crank, stock rods (.010/.010). I've only looked at a couple bearings, they don't look too bad. I'm going to plastigauge them. The rods have been ground for balancing (7 of them), and it has a windage tray. I haven't looked in the oil pump yet. The pistons appear to be .030 KB190's. (10.5:1) They have the shorter quench dome of the two part numbers I found. I don't have them out yet, but there is no ridge, and I can see cross hatch. I'm going to cc the heads, check the deck height (Do I measure around the edge, not on the dome? Never checked any except flattops.), the gaskets were FelPro blue. I want to figure the comp ratio and see if I can get more by cutting the heads, or block, or both. I'll check piston to valve and cut the pushrods.
It has a double roller chain and the cam appears to be a .509 purple shaft. The lift at the lobes X 1.5 = between .507 and .513. It has purple paint between the front two journals. The numbers 970406 on the back end of it, if that helps. Is this a purple shaft? I know there are better cams, but I have it and plan on someday, building a 408, so it'll do for now.
If I can run this with just bearings, rings, gaskets and some decking, that'd be great. Thoughts?
