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The .039 is what I was referring to as “regular” you could do that sure but that would be a shame. I’d be more inclined to either mill the block some and run the .039s and pick more fitting parts throughout to compliment it. KB162s are available now on summit for you 4.290 bores, they ‘should’...

I think if you go with those pistons you are going to wanna change more in your equation. For starters the compression height is 1.912 which is .008 lower than the 2315s not bad but with the thin gaskets you are barely in the the territory of chasing quench with out having the block decked...

Your piston have a 23cc dish, with your monster stroke crank and a 78 cc head that equates to 9.65:1... pretty good. Now change nothing else but the crankshaft and a rod to get it to the top of the bore / or wrist pin location.... and you have an 8.05:1 compression pile of trash. How does stroke...

I did check it, but with a borescope turning the motor over watching the events. There was never anything remotely close needing further investigation. So i sent it, alot. I do intend on having the heads off this summer before my #MoparVsBrandXstreetcarShowdown this fall in Alabama so Ill try to...

The 2315s have taken me from Alabama to: Washington DC, Dallas, Kansas, Virgina Beach, Philadelphia, Myrtle Beach and everywhere inbetween. Ive ran them hard, overheated, out of fuel, previously before the 915s with garbage valve seals/guides on the OG 440source heads and even had a dead...

I had the block decked .020 which actually brought me to .002/.003 out of the hole. Head gaskets are just standard .039 Felpros. The cam is the Hyd roller below, I use solid roller lifters and Harland sharp rockers with lash around .005 cold. I do not have the measurements you are asking for as...

I have 2315 pistons in my zero decked 383 w/915s, i also run a cam bigger than .500 with no reliefs. It's .534 on the exhaust which is the closest one to interferance (and its not even that close) using a 1.74 valve. Cam is 274 int./282 exh. I shift it at 6000 and it gets street used all the...

I really do not know, but it’s more than your average bear due in part by the receiver hitch behind the bumper and subframe connectors. I’ll try to get it in a scale soon so I can get some accurate figure to go with my Dyno sheets and 1/4 mile times. I need it to speed up some this October at...

My ‘60 foots were in the low 1.70s last time out. The calculators will put my car in the 12.3-4 range but I figure it’s probably closer to the 12.5 range. But seeing as how this is a conversation about budget 383 pistons, I’m only validating the Speed Pro capabilities after 25,000 miles and lots...

Get the SpeedPros, I have since went back to a 915 head, But FWIW I had them under some out of the box Stealth Heads running through HP manifolds and my 383 went 8.42 in the 1/8 mile. Block was zero decked and used a standard .039 Felpro gasket. The cam was a roller from Hughes with 208/214@50...

I run the flat top forged Speed Pros that you can get from Summit/Jegs block is decked to get the piston out .004 and using a .039 gasket for a .035 quench. Runs on 93 octane without problems. My combo is pretty close to what you listed above outside of my 1.74 exhaust valve in my 915s and...