440 Stroker Kit?

Posted By: Flatblack

440 Stroker Kit? - 01/25/11 02:12 AM

Long time no chat?? Hows things going eh?

Well I have my block ready to be decked and borred. I have been looking into buying a stroker kit for my 440 block. I am just not sure which route I should venture down, 440source route, the Mancini route, or other 440 stroker kit routes etc.?

Any info would be great to help me decide where to blow my savings!!

Posted By: 1969gtx

Re: 440 Stroker Kit? - 01/25/11 03:02 AM

nick at compu-flow very knowledgable i have purchased 2 kit from him 528 kits
http://www.compu-flow.com/

Posted By: Boosted

Re: 440 Stroker Kit? - 01/25/11 03:07 AM

I have the 512 from 440 source and love it...

Posted By: challengermike

Re: 440 Stroker Kit? - 01/25/11 03:31 AM

My kit was only crank and rod made by cat,i bought off the shelf KB pistons.

Posted By: fourgearsavoy

Re: 440 Stroker Kit? - 01/25/11 03:37 AM

Quote:

nick at compu-flow very knowledgable i have purchased 2 kit from him 528 kits
http://www.compu-flow.com/

Nick will set you up with whatever budget you have and will offer advice on heads and cam for your combo

Gus

Attached picture 6436995-burnoutpicturegus.JPG

Posted By: chrisf

Re: 440 Stroker Kit? - 01/25/11 04:11 AM

i see ohio crankshaft sells as well. anyone ever buy their stuff?

Posted By: Stanton

Re: 440 Stroker Kit? - 01/25/11 05:11 AM

I have the 440Source 528 kit and had no issues with it at all. HOWEVER, do youself a big favour and have your block sonic checked first to make sure it can take the bore you want to go with AND have the deck heights checked first as well. My "stock" block ended up having the decks below spec before decking so I'm having to run a tighter quench than I would have liked. Had I checked that before ordering my kit I could have ordered a different piston and not had an issue. Also, go with aluminum main caps. Yes, its more work, yes its more money and yes, most engine builders will tell you they aren't necessary BUT they're used to building Chevy's. Aluminum caps in the RB is cheap insurance. The 440Source ones seem decent for the price.

Doing it over again I'd go with the 512 instead of the 528.

Posted By: RapidRobert

Re: 440 Stroker Kit? - 01/25/11 05:41 AM

Quote:

Doing it over again I'd go with the 512 instead of the 528.

considering one in the future. why would you have gone w lesser cubes? More compression height for longevity?

Posted By: 72N96RR

Re: 440 Stroker Kit? - 01/25/11 06:22 AM

Can you use the 400 block for either the 512 or 528 kit??

Posted By: Boosted

Re: 440 Stroker Kit? - 01/25/11 02:05 PM

I am using the stock 440 block with my 512... No issues at all. went together like a stock 440 would...

Posted By: KillerBee

Re: 440 Stroker Kit? - 01/25/11 04:02 PM

Quote:

nick at compu-flow very knowledgable i have purchased 2 kit from him 528 kits
http://www.compu-flow.com/

Looks like they're having a stroker shortblock sale

http://www.compu-flow.com/shortblock.htm

Posted By: Stanton

Re: 440 Stroker Kit? - 01/25/11 05:04 PM

Quote:

considering one in the future. why would you have gone w lesser cubes? More compression height for longevity?

Comp. ht. wasn't a concern ... its a stroker motor !!!

Primarily so as not to have to bore the block .055 over. The 528 uses a 4.375 stroke crank. I could have gone with a .030 or .040 bore but then the bore would have been less than the stroke.

Going with the 4.25 stroke crank you can go .030 over and the bore is larger than the stroke. This, by the way, yeilds a 505"

The 528 uses a 4.375 stroke crank so an external oil system is almost a must. Clearancing the block for the longer stroke was no big deal at all but it did need it.

And no matter what I ran the numbers through, the 512/505 made the same HP and Torque as the 528 (which turns out to be 526 with the .055 overbore).

Posted By: moparsquid

Re: 440 Stroker Kit? - 01/25/11 06:38 PM

I vote for the 440 source,I have the 500 strkr kit and love it.

Posted By: Jamey

Re: 440 Stroker Kit? - 01/25/11 07:35 PM

I pieced mine together. I used a K1 crank, Compstar rods and Diamond pistons. I think I got everything from Dram here on moparts. I will say what a torque monster. I also did the 4.25 crank so I didn't have to go with external oiling.

Posted By: Harley

Re: 440 Stroker Kit? - 01/25/11 07:46 PM

Quote:

i see ohio crankshaft sells as well. anyone ever buy their stuff?

I have the 4.25 crank form ohio. It checked out good, and it's been in my motor for 5 years now.

Posted By: rattler

Re: 440 Stroker Kit? - 01/26/11 02:34 AM

I just ordered the 512 kit and heads today from 440 source. Ken told me the 512 was a better choice than the 493 that i was going to go with.The 512 should yeild about 10.25 compression where as the 493 was going to be about 11.5.

Posted By: Blakcharger440

Re: 440 Stroker Kit? - 01/26/11 03:52 AM

Quote:

I just ordered the 512 kit and heads today from 440 source. Ken told me the 512 was a better choice than the 493 that i was going to go with.The 512 should yeild about 10.25 compression where as the 493 was going to be about 11.5.

I have that exact kit and heads in my 440! It performs really good! But now I want more power!

Posted By: Stanton

Re: 440 Stroker Kit? - 01/26/11 04:16 AM

Quote:

I just ordered the 512 kit and heads today from 440 source. Ken told me the 512 was a better choice than the 493 that i was going to go with.The 512 should yeild about 10.25 compression where as the 493 was going to be about 11.5.

Call them back and upgrade to the CNC'd heads (if its within your budget)- otherwise you're no further ahead than using a stock 906!

When you get the heads you'll DEFINATELY want to upgrade the retainers and locks and possibly the springs depending on your cam choice.

Did you get the "balanced" assy. - worth the few extra bucks!

Also, don't be disappointed if/when the pins don't fit the rods ... this is about the only thing that needs attention.

Posted By: Flatblack

Re: 440 Stroker Kit? - 01/26/11 10:08 PM

So..... How would I go about explaining the deck height issue to the machine shop? Is there some sort of specs for deck height that I need to know about or will the machine shop have sufficient knowledge?

I am only going to bore the minimum I can because my stock block is only .006 tapered, the machine shop said I could put it back together and run it like that and it would be okay, I figured hell I got it apart already.....

Posted By: Stanton

Re: 440 Stroker Kit? - 01/27/11 12:24 AM

Deck height ...

1/2 the crank stroke + rod pin-to-pin length + piston comp ht. + whatever the "advertised" piston deck height is (usually a - #). All these #'s will be right beside the 440source kit # you ordered.

i.e.

4.25/2 + 7.1 + 1.43 -.010 = 10.645" deck ht.

You need a block with a minimum of about .010 MORE than that so it can be properly squared and leveled.

Posted By: 70RT Charger

Re: 440 Stroker Kit? - 01/27/11 12:25 AM

You guys are talking all this 512 stroker kit but Ive never seen no real HP numbers on them.Im definately going to purchace a 512 kit but want to stay with the 906 heads to keep my compression low to make an enjoyable cruiser.Wonder what kind of HP numbers could I expect out of the 906 head route and what set up,cam,intake and carb would be best for it.

Posted By: rattler

Re: 440 Stroker Kit? - 01/27/11 01:46 AM

I went ahead and got the 10 degree keepers and locks along with the head bolt kit when i ordered. I figured i would gasket match the heads and RPM intake and let them be. Ken at 440 told me i might need to fit the pins, no problem doing that. Randy

Posted By: RTSE4ME

Re: 440 Stroker Kit? - 01/27/11 03:00 AM

Quote:

I pieced mine together. I used a K1 crank, Compstar rods and Diamond pistons. I think I got everything from Dram here on moparts. I will say what a torque monster. I also did the 4.25 crank so I didn't have to go with external oiling.

I also pieced my kit from DRAM. One nice thing when buying from an engine builder is he was very helpful when I put the engine together. Lots of advice and tips.

Posted By: Blakcharger440

Re: 440 Stroker Kit? - 01/27/11 05:16 AM

Quote:

You guys are talking all this 512 stroker kit but Ive never seen no real HP numbers on them.Im definately going to purchace a 512 kit but want to stay with the 906 heads to keep my compression low to make an enjoyable cruiser.Wonder what kind of HP numbers could I expect out of the 906 head route and what set up,cam,intake and carb would be best for it.

1970 Charger RT 4 speed car

512ci RB,Stealth Heads uncut(swapped out the locks & retainers),Harland Sharp 1.5 Rockers,10.5 comp,Eddy RPM intake,Hooker 1 7/8 headers,950 Proform carb,Hughes solid 579/587 256/260. I went mild on the cam...heck who am I kidding... my whole combo is mild.

It made 566HP/640 TQ with the dist locked in at 36 and with a 50/50 mix of 87 & 112.

It has been said that uncut Stealth heads are no better than stock 906 heads...I would have to disagree as the flow numbers in the past have the Stealths outflowing uncut 906's

I would have to agree that getting the ported Stealths will help this engine breathe....I myself will be swapping to some Indy 440-1 heads.

But of course if you port the 906's you can get some really good numbers out of them if done by the right person.

Posted By: Flatblack

Re: 440 Stroker Kit? - 02/01/11 04:54 AM

Can I ask went bore you decided to go with?