Search results for query: 440 source heads

My 383, .030 with 440 Source heads, tunnel ram, efi, it's a screamer.

440 Source rocker hold downs are much wider than the heads. Ha. But feeling much better about shaving these replaceable pieces over the heads. Will be test fitting prw, shaved 440 source hold downs and Pushrods this weekend.

I bought directly from 440 source. They were assembled heads. Car runs much better. The engine had what were presumably the factory steel shim type gaskets. Between leaky valve seals and presumably bad valve sealing the car did not want to idle very well with the original heads. Its much...

@zombezoo did you go for a set of the 440 source stealth heads ? Did you get the assembled heads with their valves / springs/ retainers ?

...weeks and would like to make at least 1hp per cube. Stock 346 heads for now, I have headers but want to use HP manifolds for ease, 440 source heads next year. The smaller CC of those heads are being considered and would like to keep it under 9.5:1 with the 440 source heads. I get the stock...

With the new pistons I bought, they have a 27cc dish, 440 source #5074. With the heads both being 68cc now I am going to need a thick head gasket. I can get Cometic up to .120". Using a .095" gasket puts the compression at 10.83:1. The .120" gasket brings it down to 10.3:1

...want some more compression. Just the flow increase alone will make more power everywhere. Just don't over cam it. I just pulled an 8.5-1 440 with the Comp XE274 out of my Duster. Changed from stock 452 heads to cnc ported 440 source heads I had lying around and it was a night and day...

I did 440 Source Stealth aluminum heads with a tunnel ram on a 383, 4 speed car. Extremely drivable, drive it all the time, mounds of torque for reasonable $.

I think you can get close enough to make you happy doing what you said you are willing to do. 451 flat top stroker from 440 Source, ported Stealth heads, 440 Source can probably tell you which of their cams to use with stock rockers. (I hate stock rockers, but I guess they will work for you.)...

If I do go that route, 440 Source will be happy. Stroker package, heads, rockers etc. Put together a low to mid range stump puller for my wagon.

You'll get opinions on this that you may not like. Iron heads appeal to two types of people. CHEAP dudes and guys that are obligated to use them for specific racing classes. If someone is willing to pay even $100 for these heads, I'd be surprised. They are not rare and not hard to find. They are...

Did not have to modify either of these pumps to fit. Iron heads on both. We will see how my 70 goes with the 440 Source ones.

...intake, 247 exhaust at .050 on a 110 center lobe. It will have around 10 to 10 1/2 compression. It had 10 to one compression with 440 source heads. The last engine I had in it had so much cam that the brakes would go out now and then. Or would an hydraulic cam be better? Any info I can get...

I think the 452's is the right answer for you. If you really want aluminum heads (they'll make more power than stock 452's, for sure) I'd revert to the 440 source stealth. In your research, study which heads have raised exhaust ports. Would be a nightmare for your situation.

I'd get some edelbrock small chamber E-Street heads, or maybe 440 source stealth heads. The better airflow and lighter weight will really help. Then just a bunch of tuning before deciding on the next change.

My .040" over 440 has around a 10.2:1 CR with ported 440 Source aluminum heads and a solid lifter cam installed at 104° CL, 108°LSA, 246° / 250° duration at .050". 21 initial/36 all in timing and I run 88 clear gas without issue. I'm in NM and we get into the triple digits. My AFRs are great...

470 stroker kit from 440 source, Edelbrock performer rpm heads, full roller engine, Edelbrock performer rpm intake, Edelbrock AVS2 850cfm carb, TTI headers, FBO complete ignition set up ( coil, ignition module, distributor) I have to look up cam specs

I did get the block hot tanked so they pulled all the plugs. I'm going with new aluminum 'stealth' heads from 440 Source. Plus a .488/.491 cam from Comp Cams. Topped off with a Edelbrock intake and 750 cfm carb. I thinking 400+ hp!

440 source,sidewinder,Edelbrock E street,etc. for a typical flat tappet hot rod type build. If your heads are ready to go then use them unless you have cash to burn. If they need reworking then I would consider upgrading.