My Dart Swinger Project!
Cool not that I would actually try that but it sounds like a cool project lol.
I have been doing some research and weighing my options and kinda looking at the cost aspect of doing my engine in different ways. I have a few questions about the machine work part of it. I was punching some numbers just to see where i could get my compression. Using speedpro pistons 1.755 height. That puts me .065 below the deck. If I was to mill .030 of the deck and .030 of my heads (putting me at 59cc) using a felpro .040 headgasket. That would put me at 9.8:1 scr. And that is a .040 over bore. Here come the questions
1) removing. 060 would that require new pushrods?
2) could I run on pump gas (any and all grades) with that cr?
3) would milling .060 create a valve to piston clearance problem with the .454 lift cam?
There was more but I cant remember now i will ask when it comes back to me. I may start a new thread with these questions but I will wait for now. Thanks guys
I’ll answer the questions but suggest this is the wrong way to go about doing things because of other issues, real and possible that can/will/might show up.
This Maneuver is basically bass akwards.
1: New pushrods should be purchased on most every build with a new cam unless all things remain the same from the original configuration.
2: The question of compression and pump gas is mostly a loaded question. Generally speaking, without knowing the rest of the engine combo, a general hot rod build up and 9.8-1 is probably (and I grit my teeth when I say this and winch my head away) OK with 93 octane. (And again I grit my teeth, cringe my eyes closed and turn my head with possible regret on saying that because of the wide range of possible combination screw ups that loom.)
You wanna run ANY grade octane?
Then the ratio your looking at is 7.5-1.
3: Cam clearance will milled heads and a milled block? This answer is again a semi loaded question but I’d say it would be OK. HOWEVER! You need to check with some clay on the piston top, pump up the engine oil pressure, rotate the engine around a few times and then check clearances.
IMO, this is a bad path. I understand money is an issue but going this route could end up badly. If you do this, check everything on every step of the way or you could just be throwing money into the garbage can.
