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I had that issue with a fresh rebuild 383 hp! Not by me! When I bought the car, the p.o. had just rebuilt it. When I spoke with the machine shop, the first thing they said was, “we did the machining but did not install the pistons!” That led me down a huge expensive 512 stroker rabbit hole and...

I believe that is your 400’s pcv valve in the blue cover. I don’t know specifically in California but I certainly would imagine they’re going to want you to have that in there. You can get chrome covers that allow you to still have that installed. What does the PCV System do & why is it...

Sometimes if you clean that pad, lay a piece of paper over it and side scratch a pencil around, it may help reveal any markings the naked eye can’t distinguish. Gives it that extra contrast. Sometimes not too!

Not on your list but, I used these guys. Everything went well! Told them my set up on the stroker build and they matched up perfectly.. Great experience! Shop Transmissions, Torque Converters - RevMax Converters

I purchased the bracket and went Lokar cables for both, throttle and kick down. Ended up just being easier to get adjusted correctly. Works great. Looking at the bracket, I bet you could still use original throttle cable. May take a little figuring. Heres the bracket. Pretty clean and easy.

I went lokar back couple years ago and easy setup and adjustment and done! https://www.lokar.com/throt-cable-kickdowns.html

If you go stroker route, the kits are the same price, go 512! Keep CR around 10 and it will be a good strong street car and have all the HP you need. Bring the quench up close to the deck and that’ll get you great power! My thought was if I’m going to spend the money to stoke a 400, why leave...

It was pretty close to drop in.. we did a little work but not a ton. We believed that all tolerances needed to be checked and gone over regardless! The CR is 9.7:1. I kept the CR down but brought the pistons to darn near deck height so lots of Quench or what my buddy calls squish! Lol! He...

400 to 512! I figured if I’m going to spend the money and same money to be exact, I wanted the power! If you keep the compression ratio down a bit, pump gas will be fine. Cruise all day long (of course you will not drive by many gas stations without stopping) and still be able to get after it...

here’s another example of a 383hp. 1968. It’s hard to see.. blow it up a bit and you can. D 383. 3. 6 in middle then in lower right corner the HP. I should also say that pad is on the front corner, passenger side of motor as in post 3 from beepbeep. The b motor. 383/400

Running the 440 source 512 kit too! Dome pistons kit coming right to the top! I kept CR at 9:7 to 1 for reg pump fuel. I do add a little octane boost to help out and it like that with cooler temps for sure! I have a Torker single plane with a quick fuel 850 dp on top. For this it seems to be a...

Running the 440source CNC Stealth ones. But not stock manifolds. Long tube headers. With the upgrades on the heads for valves, they’ve been great! I will say mopar stock manifolds do a very good job on they’re own but I couldn’t see putting on those heads and not using long tubes.

I went with 440Source stroker kit. Kept the CR down a bit for good pump gas. Used CNC Stealth heads with the proper valve and upgrades they recommend. The hydraulic roller cam listed on their site...

I have a 400 / 512 in my charger. I was going the 470 route because I thought a 512 would be way too much for what my plans were for the car. I just planned to have a good cruiser. I spoke to the guys at 440source and as mentioned by 1 Wild R/T it’s the same price for all their kits. They talked...

Harland sharps on CNBC stealth heads work great. But may break the bank. They aren’t cheap! I had to pilfer a little (lot) of cash from the wife’s account! :lol::lol:

400 stroker to 512 here. No changes to cooling or fuel runs fine. Not a 440 though. Others here may have more info on that setup! Good luck!

I built 512 with auto 727 with 4:10 in 8 3/4 489 case. No issues at low end or anywhere throughout..I also used this particular cam.. comp cams 571..no Eli straight carb and msd http://store.440source.com/Comp-Cams-Custom-Hydraulic-Roller-Retrofit-Cam-571/productinfo/145%2D1714/ I’m sure there...

I stroked the 400 to 512 with the 440 source kit. Kept the compression down to use pump gas and believe it or not, it’s very street worthy. Drive it around all the time. I also used the 571 cam from the 440 site too! My experience go big. If you’ve got the cash to go 451, you’ve got the cash to...

If you got a 400 block, Go big. A 512 kit is the same money and it can be made to be very street-able and can go on pump gas. When I researched mine, it was the same price as the 451 to 512, the dependability was the same, except of course when one gets after it, anything can happen. Build was...

My friend that helped me out with my 512, builds race engines for a living. He is all about Quench, or squish as he calls it. I have no complaints whatsoever! I know my 512 was built as close as we could to maximize it! I’d have to locate the paperwork on build to come up with specs on it. I...