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Its time to swap out the roller lifters in my 440. I have COMP lifters in it now and they have over two years on them now. The car gets driven about 1000 street miles a year and has about 30 drag passes on it so I don't want to push my luck. I don't want to use another set of COMP lifters so I'm...

I know its well known that the little Scumacher headers cost power, but I have not seen too many actual tests so I'm posting my results to give some insight. My car is a 70 Gold Duster street strip car. It weighs exactly 3500# with me in it and a full fuel cell. The engine is an 11.5 to 1, stock...

I have a 440 with about 11.5 to 1 compression. The cranking pressure is 210 psi. I've been running it for over a year with Champion RC12YC plugs with no problems at all. I run 93 pump gas with Klotz KL628 octane booster and I'm not getting any pinging or dieseling when I shut it off and have not...

Now that I've jumped into the pool and learned a little about the world of Mopar performance, I'm in the very early planning stages of the next motor for my Duster. I am sticking by my chiselled in stone rules and two of the biggest ones is the car keeps a flat hood an air cleaner and no power...

I keep seeing people on the internet giving advice about building big block A bodies. One thing I see a lot is people saying you have to swap out the six cylinder torsion bars if you're swapping the big block for a slant six. I just want to let anyone doing the swap to know that it's not...

Well it was a long time coming but I finally got my 70 440 Gold Duster up and running and to Lebanon Valley. It's a street car, registered and insured with full exhaust, interior, power steering and all. It has a flat hood, runs on 93 octane pump gas, and is fully streetable. I made 7 passes and...

I finally got my 440 running. It's a street strip motor with about 11 to 1 comp. solid roller, 440 Source Stealth heads and a single plane intake. It seems to run well but I was only able to drive it very little because the transmission has an issue. My concern is the oil pressure. IDK what the...

Well its taken a long time but I'm finally getting close to getting my 440 Duster running. I have not tuned or raced any cars since the 90s and I have never even driven a big block Mopar, let alone tune one, so I'm hoping to get some input on where to start off. The engine is a .030 over stock...

I'm using Stealth heads on my 440. It has Speed pro flat tops and the block has been decked for a zero deck height. I want to mill the heads but do not want to cut them to the point where milling the intake becomes necessary. Can anyone tell me how to determine how much I can safely mill them?

I'm setting up the valvetrain on my 440 and I have Crane alum. rockers. I don't have any instructions or diagrams. The Crane setup uses springs on the shafts to hold the rockers against the shaft hold down clamps. There are 8 thin steel thrust washers for each shaft and what I dont know is; Do...

What oil pump would you recommend for my engine. Its a 440 with stock stroke steel crank, Eagle rods, speed pro forged flat tops, a Milodon 7" pan that looks like it holds about 7 quarts. I'm using CNC Stealth heads, a Comp extreme energy 292 solid roller which Comp says works good from 3500 to...

I'm going to use an A-518 behind a 440 in my Duster. I know I have to modify the floorpan and fab a trans crossmember. My question is with bolting the small block trans to the big block. The only adapter kit I've seen so far is from SMR trans and its over 500 bucks which is too expensive as far...

I'm putting a 440/727 into a 70 Duster. The car has the original slant six K frame and I'm usung Schumacher mounts and headers. I have two 727 transmissions. One is from a 74 Imperial 440 and the other is from a 72 Newport 400. My questions are; Is either of these trans cores better than the...