Poly 318 Questions
I love that car. Nice engine shot. The biggest challenge to the Poly engine is excellent head flow to match available cams for best power output. There is a guy on FBBO that can CNC the poly heads for some outstanding numbers. Pricey, but what else is new. He has the rocker pedestals (sp?) milled off like the W-2&5's. I'm not sure what he did for rockers.
OE poster/thread starter;
Basically the Poly will interchange parts with the LA engine to a large degree. What won't is a short list. Pistons, heads & gaskets, intake, exhaust, rockers and cam. Valves as well IIRC, but it is not really an issue to get them ether.
The timing cover & water pump are different from but swap with time marks moved to the otherwise of the engine.
Racer Brown and Crane can make a cam for you.
Performance parts are hard to come by with little verity. Currently, the previously mentioned Chrysler Power (.com) web store offers a brand new 4bbl. Intake casting and valve covers as well as a few cams and tti headers & exhaust. The factory 4bbl. Is OK. The now out of production after market intakes can be found at a hefty price. But they do range from a simple Weiand 4bbl. to a Weiand or Edelbrock (P-600) 3 X 2 and the super rare factory 2 X 4.
Stroked kits are available. Since the mains are the same as the 273/318/340, a striker crank will drop in. The kits come with pistons so the price is kept down as custom pistons are very pricey. IF your pockets are deep and you want to do something totally different, there is a 4.25 crank available. Pistons will cost somewhere around $700-$1,000 though.
Personally I thinking dropping in the fresh engine is a smart move no matter what. That engine should provide decades of reliable motor - vation!
It's a bolt in brother. No issues. The torque converter may be an issue on the register, I'm not sure. All Acc. Parts will bolt on from any LA, no problem. Exhaust is the only minor issue.
I'm one of them :D
Mine is 425hp at the crank. It's in a '60 Dart Seneca.
I love that car. Nice engine shot. The biggest challenge to the Poly engine is excellent head flow to match available cams for best power output. There is a guy on FBBO that can CNC the poly heads for some outstanding numbers. Pricey, but what else is new. He has the rocker pedestals (sp?) milled off like the W-2&5's. I'm not sure what he did for rockers.
OE poster/thread starter;
Basically the Poly will interchange parts with the LA engine to a large degree. What won't is a short list. Pistons, heads & gaskets, intake, exhaust, rockers and cam. Valves as well IIRC, but it is not really an issue to get them ether.
The timing cover & water pump are different from but swap with time marks moved to the otherwise of the engine.
Racer Brown and Crane can make a cam for you.
Performance parts are hard to come by with little verity. Currently, the previously mentioned Chrysler Power (.com) web store offers a brand new 4bbl. Intake casting and valve covers as well as a few cams and tti headers & exhaust. The factory 4bbl. Is OK. The now out of production after market intakes can be found at a hefty price. But they do range from a simple Weiand 4bbl. to a Weiand or Edelbrock (P-600) 3 X 2 and the super rare factory 2 X 4.
Stroked kits are available. Since the mains are the same as the 273/318/340, a striker crank will drop in. The kits come with pistons so the price is kept down as custom pistons are very pricey. IF your pockets are deep and you want to do something totally different, there is a 4.25 crank available. Pistons will cost somewhere around $700-$1,000 though.
Personally I thinking dropping in the fresh engine is a smart move no matter what. That engine should provide decades of reliable motor - vation!