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Re: 512 Assembly Is Under Way!!
[Re: 451Mopar]
#703162
05/21/10 11:47 PM
05/21/10 11:47 PM
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Joined: Nov 2009
Posts: 2,177
ill
dennismopar73
top fuel
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top fuel
Joined: Nov 2009
Posts: 2,177
ill
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well my numbers may not be exact, but i have run rpm stock spring stx 21 no problem i know stx 21 will run deep into the 9s with no problem either but youre right i would put some diff retainer on em spend 200 $ numbers that i postered where basical what i have done on the motor i have for my car i dont and will never ever run a roller cam to much headache for me , hard on everthing thats me someguys love em live eat breath rollers thats great they are just not my cup o tea my car 73 duster will weigh 2800 motor 383 /440 crank stock rods heavy venolias stx21 456 geared 33 tire should run 9.90 10.0s ?/ if i want to step it up build 500/512 run mid 9 s ?? 
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Re: 512 Assembly Is Under Way!!
[Re: dennismopar73]
#703163
05/22/10 04:27 AM
05/22/10 04:27 AM
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Joined: Jul 2004
Posts: 4,384
Worst Weather USA
493_DART
master
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master
Joined: Jul 2004
Posts: 4,384
Worst Weather USA
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Thats a mean 383 !  The cost can be lower that you think on a stroker.... half of the stuff can be used.... except new bearings, rings, new crank, rods, pistons. bolt on the rest. heads, intake,carb, pan,cam, + exterior parts . i know first hand about budget strokers 
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Re: 512 Assembly Is Under Way!!
[Re: moparniac]
#703169
05/23/10 07:25 PM
05/23/10 07:25 PM
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Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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Quote:
Quote:
Quote:
I think the stroker kit is around $2,000?
Heads with good springs/retainers/rockers $3,000+?
Roller cam/lifters/timming chain/pushrods $1,000?
Intake/carb $1500?
Oil pan/pump/windage tray Maybe $500?
machine work $1000-$1500?
So maybe $9,000 if you can do the assembly and reuse ignition/water housing and pump/pulleys/radiator and exhaust?
Add some trick parts or porting and I'm sure the cost will go up. You may be able to do it a bit cheaper too, but I think it would be difficult at the 700 range without compromising durability?
The place where you could save some $$$ is if you can get a good used intake and carb and/or oil pan?
naaa... your way high on those numbers 
LOL I would say those are low according to my build! 
When I built my 451, I got the B-1 B/S heads from Koffels ready to run with stage 1 porting, roller springs, retainers, locks, head stud kit, 1.6:1 ratio rockers, pushrods, spark plugs, and shipping was right at $3,000.
I bought my 451 assembled short block from muscle motors. They supplied the 400 block, 440 crank, 440 rods with ARP rod bolts and ARP main studs. Custom ross pistons, ultradyne roller cam and lifters, installed cam with double roller timming set. This had their race prep machining (Align honed, square decked, honed with torque plates, etc.) I don't recall if it came with an oil pump, but I had to supply the oil pan/pickup, and waterpump&housing. Anyhow with shipping it was right at $3500.
So I had $6500 into my long block, plus the cost of the intake/carb (about $1,000), the oil pan/pickup ($300), ignition system ($300), headers ($300), plus misc stuff, so I guess it was about $8500, but that was 15 years ago.
That engine made about 600 HP on pump gas, but I was running a small 0.610" lift 254/254 @ 0.050" street roller cam.
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Re: 512 Assembly Is Under Way!!
[Re: Labratt]
#703170
05/23/10 07:34 PM
05/23/10 07:34 PM
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Joined: Jan 2004
Posts: 3,838
Central Missouri Fort Leonard...
mopar65
master
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master
Joined: Jan 2004
Posts: 3,838
Central Missouri Fort Leonard...
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I talked to Doug to day. sounds like he and you guys had a blast and the car is running great also. TED is is a pic of my little 440 i am building for my 73 dart.If i ever come up to Iowa to race i will make sure to stay away from you and 496 dart lol. good luck on the engine build. Bobby
3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727
10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come...
( SGT Miller) Proudly served 12 years in the US ARMY RESERVES
support our troops
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Re: 512 Assembly Is Under Way!!
[Re: mopar65]
#703171
05/23/10 11:07 PM
05/23/10 11:07 PM
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Joined: Jan 2003
Posts: 26,013
United Socialist States of Ame...
tboomer
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 26,013
United Socialist States of Ame...
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Guys...Sorry for the late reply...Just talked to Jimmy...The build is going well...I worked 12 hrs Sat and today...Kinda tired out!!  He will post some pics when he gets time...Jim...The heads are MP 383-440 Aluminum street heads...I will see if I can find the numbers for you..Now...Where is that orange Dart....  He may need a blue bottle.... 
Need your rear end checked out? Contact Grizzly!!
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Re: 512 Assembly Is Under Way!!
[Re: 440Jim]
#703174
05/24/10 04:09 PM
05/24/10 04:09 PM
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Joined: Jan 2003
Posts: 26,013
United Socialist States of Ame...
tboomer
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 26,013
United Socialist States of Ame...
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Jim..These are the MP 383-440 aluminum street stage VI heads..Fully ported by Radar Lechtenberg at R&J Performance in Hudson,Iowa..Here are the flow numbers..This was done without an exhaust tube... .100 66/61 .200 137/111 .300 202/160 .400 253/209 .500 290/226 .600 301/253 .700 302/267 They were 80cc heads...I think that Jimmy may have shaved em down...Yes...They are flat tops...We hope to test this weekend...
Need your rear end checked out? Contact Grizzly!!
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Go get e'm! Bobby, you woulda been proud of Dougie and the ole' '65' last week-end! Car ran great with Dwayne's new motor! 
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