Search results for query: 440 source heads

I currently have an Edelbrock Performer 383 intake and am considering swapping to a RPM Air Gap. My engine is a 383 stroked to 496 ci with 440 source kit, Edelbrock RPM heads (60925), Comp cam 230/236 .541/.537 lift (23-711-9), Holley Street Avenger 770 cfm. I can’t find any performance numbers...

Get as crazy as you want with a different block and heads. You could redo yours with an upgraded cam and some ported 440 source heads painted to look stock also. Your car and your money so do as you wish but I would protect the original block and heads if it were mine.

If you are buying new heads, you don't need new seals, or locks. I use 7* locks on mild hydraulic roller set ups all the time. Also, I would doubt new retainers are required, as a mild hydraulic roller really doesn't need a crap load of spring. It would all depend on which spring you go with...

I'm personally not a fan of 383s and don't get why anyone would chose to use one save for a numbers-matching deal. I certainly wouldn't put one in favor of any 340 nor spend a dime to rebuild one to stock specs. Based on my own direct experience, I had a basically stock one in a '68 Coronet 4...

You said you wanted a little more cam. Ok the old Mopar P4120235 or P5007697 (or something like that) would be good. That is a stock Street Hemi grind. .484" lift 241 duration. Simple, friendly and easy. If your heads need anything to speak of, and they probably will, I would buy new stealth...

I think you’ll be in trouble. Give the cam type and specs.

You misunderstood. I have non raised port heads (Source 440 Stealth) and 2 1/8 440-218 TTI step headers and am sure this mismatch is contributing if not the entire reason I am having header/starter clearance problems.

First off, what are your goals for this build? Seems like it's primarily a street engine, but how heavy of a vehicle are you putting it in and what gearing are you going with? The 413 is just a 440 with a smaller bore (with thicker walls) so aside from the big valve heads, all the same 440...

...mid 230's low 240's max for low rpm you're looking for. For lift with those heads, you might as well not go lower than .500 (imho). 440 Source heads flow well, so use them. Then it's about LOA and centerline... May want to lean more toward the 110 LOA and 106 CL numbers. An example could be...

Yes I'm using those headers with Indy Cyl Head raised port heads on the 63 and no problems SUM 820441 Summit brand starter

I just became a member of NMCA, have my permanent #7512. Sold my #'s matching 67 GTX 440, 4 spd, 3:54 Dana car and purchased a 62 Savoy race car, 440 bored with a 440 Source 512 stroker, Clay Smith .555 lift cam, TTI step headers 2" to 21/8",727 with reverse manual valve body still using the...

440 Source heads would be the best bang for the buck.

I used Ohio Crankshaft's kit (probably before 440 Source was around) with no regrets. Use the smallest overbore you can, it makes for stronger cylinder walls/better ring seal. RPM heads. Complete Hughes valvetrain (solid) and my 6 Pack induction. 10.6:1 CR, Dougs headers with 3" exhaust-X-pipe...

For a street motor without power adders, the KB 236 or 237 are good choices. I have the 237's in my 440, with Source heads are about 10.3:1. The 236 has a raised pad for open chamber heads. Just looked at Summit, ICON forged are about the same price as the KB's. I'm not sure on weight difference.

I have gathered the parts for another 512" stroker. Going the 4.375" bore size as the block bores did not clean up at 0.040" over. This is being built as a mild street pump gas engine, so I'm using the 27cc dish pistons. The end compression ratio will depend on the cylinder heads I use. The...

Be aware that they suggest re- torquing the heads if you use their head gaskets. Also, I didn’t like their 440 valley pan.

Hey guys, just looking for some feedback on an engine block I recently got back from the machine shop. I have been checking it over with a dial bore gauge and have noticed that it is looking like the piston to wall clearance is too tight. It is tight on the thrust faces of the walls though, I...

Did you ever swap over to the TF240 heads? From what I've seen on the dyno the TF heads would be worth 50 to 100 hp depending on the rest of the engine. I've seen a couple 700 hp pump gas 470 engines with OOTB Trick Flow 240 heads. Never seen Stealth or Edelbrock heads anywhere near that number.

First I've heard of seats dropping out. They have had issues with the stock 7° locks in the past. I went 10° locks/keepers, cnc ported, stock valves, and spin in to 6k often.

Because im wanting to refresh the motor. It took me 2 says on my back, a lot of cussing. Going from a stock starter to a brand new 440 source mini starter-WHICH DID NOT FIT, back to my original starter, and finally got drivers side in… AND, im 70, with 2 metal knees which are no fun on a...