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Did they ever make a 4 inch stroker crank for the 3.9 ...I went to start my 89 Dakota after it has been sitting for a few years and the engine is stuck...got me thinking that if I have to pull it for a re-build it would be interesting to pump up the torque a bit...

Say I’m building a SBM (which is always the case) with a solid lifter cam and want around 600 lift at the valve…what are the pros/cons of using a smaller cam with a higher rocker arm ratio say 1.6 or 1.7 VS using a cam with more lift and a 1.5 rocker arm ratio…what is the consensus on the best...

Okay seeing that my much maligned “free cam build” didn’t go over here as well as my other engine builds like the “old school 340 build “ and the “ mild magnum 360 build “….I think it’s time to leave that free cam build off this site until some of you are more mentally prepared for it… now that...

I was at my friends shop and he give me a new cam... should I use it and what would be a good combo to build with it...

i have a chance to pick up a stock bore 340 block with no main crank caps... what are my options or just move along..,

Nice small block by Nick’s Garage in Montreal.

Starting a mild 360 magnum build, goal is a strong stock stroke daily driver. Block is out of the hot tank and the bore was good ...but it will end up going 30 over due to local parts suppliers not having any stock bore pistons... I will Dyno and post results

Last summer I spun a bearing in the 340 in my 69 Valiant and decided it was time to build a new 360 EFI magnum engine for that car. My buddy Mike suggested we should take the dead 340 and give it a cheap rebuild using parts that I have laying around and install it in a cheap car and do some...

Has any tried out the Pace Performance short block that they sell? Looks like a 408 based off a 360 for around $2200 but the details a slim on the web site, I'm not sure if its a magnum or LA block. Thanks

I killed the some rod bearings in my 69 Valiant’s 340 and want to build a new engine for it over the winter, something modern with EFI and air conditioning possibly a magnum roller cam engine with EFI and air conditioning or a Gen III Hemi. I have a 72 Scamp that is sitting with no power train...