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Just had my motor rebuilt: punched 440 10:5/1 Ross pistons, Comp cam K21-600-5 thumpr lift .486"/.473" , duration 279/296 200-5800 rpm. Getting pinging on light acceleration using Sunoco 93 so Im guessing the octane is too low. Have used Torco accelerator before ( 32oz in 10 gals of...

Who is Dwayne Porter?

Thanks everyone My issue is that I don't have the specs on the original motor so I don't know what the actual bore is. I'm afraid that if it gets sent to a machine shop there might not be enough room left to rebuild/bore it out further Then I wasted $2,000 or more and have to go from scratch...

I* just want the power if I need it without the necessity of using Torco additives etc. My motor was originally built as a race motor. I'd want to sell it after this.

Thinking about getting this for my 69 Dart GTS Has a 440 in it now. Motor is 11 years old. Thinking of updating to a more streetable motor. Any experience/opinions? Especially interested in the pros and cons of aluminum vs steel heads, etc. This is a cruiser not a race car. Thanks PN...

Thinking of swapping out my current Stroked 440 with this crate motor by Blueprint. Motor comes with 30 month/50,000 Mi warranty Motor is featured in this months Mopar Muscle magazine special on crate motors. BPC4931CTC 493".

Thanks for the advise guys

What is everyone using?. I have been sing Spectrum 10/40 with zinc. Anything better than that?

Yes No issue with mounts either. Originally a 383 so K frame was already for big block.

Guys I have a 69 Dart ( originally 383) The car was restored with a 440 in it as a tribute car ( not by me) The original oil pan was a deep sump 7 quart Milodon. It was replaced a few years ago with a 5.5 quart front sump Milodon. I am now having issues with the idler arm denting and...

Any recommendations on which rear main seal kit to use Mancini makes a nice billet kit. I don't race it but I want it bullet proof. Thanks

Tanks Just browsing and realized I never responded to this. Yes it is the factory A833, soon to have a 4 speed overdrive gear set installed from Passon Performance. (Will give me a 2:84 ratio 4th gear for cruising) Chas

ALL OF THESE CARS ARE AMAZING. THIS IS THE FIRST BIG BLOCK I HAVE EVER OWNED. 472 stroker (440) 525 HP, 625 Tqe Dana 60 4:10's 4 Speed When I bought it After some changes to make it look original (Red lines, dogdish hubcaps, etc At Carlisle this year with my...