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Old 09-21-2000, 08:31 PM
sctur601 sctur601 is offline
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Hello, I am new to this mopar engine building. But I am trying to find out about a combination that I am looking at. Well first its a 73 360 that has been bored to 4.06, the crank is a mopar 4" crank with 6.25 long probe rods and custom pistons with zero deck are supposed to make 9.8-1comp with the magnum heads that I have, The heads are stock except for the port work done using the mopar port plate, The cam is a compcams maxlift solid cam, The cam specs are 242 .050 int 248.050 ext duration, the lift is .534 and .545 ground on a 106lc installed strait up. The intake is a mopar single plane intake. Im not sure what carb to use, I have a choice of Holley 750dp or an 850dp. The headers I have I bought from a swapmeet The specs are 1 7/8" 32"long primary tubes with 3.5" collectors, I would like to know if anyone has run an engine like this, or if someone would have an idea of what kind of hp and torque this thing would put out? Thanks in advance for any info. sctur601
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Old 09-22-2000, 04:33 AM
CrazySpdz CrazySpdz is offline
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Well first off what kinda car is this going in, a 72 New Yorker or a 86 colt?

If you're looking for low end [stroker] maybe a dual plane will work better. 650-700 cfm sounds right, 700+ with headers?

that's a lot of lift on that cam what size valves are you going to run?

275-325hp, 300-350 ft/lb

------------------
73 Charger 400
94 ZJ Limited 318

[This message has been edited by CrazySpdz (edited September 21, 2000).]
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Old 09-22-2000, 05:16 AM
sctur601 sctur601 is offline
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The car is a 66 satellite with 3.91 gears 727 trans with reverse manual valve body and 2800rpm stall. looking for lots of mid range power. the valve size is stock exhaust size 1.625 and the intakes ar non stock size of 2.02 and wolverine roller rockers. Thanks Sctur601
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Old 09-22-2000, 05:50 AM
PRO PRO is offline
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sounds like a worthy combo sctur601,it should make an easy 1 hp per cube,but as w/stokers its the torque that youll be impressed with,it will exceed the hp #,& youve got a heavy car so it should be fairly fast but.....Id consider better heads and more compression,u could use the edelbrock aluminums and get away w/10.5 comp on 93 oct,this will raise your hp by 50-60!!! and really move that heavy car.for carb Id use a 750 vac sec w/heavy car,but w/a c loose stall conv it may prefer an 800dp......ROCK & ROLL......PRO...
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Old 09-22-2000, 06:04 AM
sctur601 sctur601 is offline
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do you think this ingine would get the car into the 12s if not what would you recomend to get it there? Thanks sctur601
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Old 09-25-2000, 04:33 AM
340king 340king is offline
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I was curious if you have trial assembled the valve train yet? Do the push rods clear the inner-intake side of the head? With the shorter lifters this might be a problem, but I haven't tried it yet with the roller rockers.

I don't know much about the Edelbrock heads yet. I hope they have made some improvements from their early Chevy stuff. You can expect around 210 cfm from the stock Magnum head. How much you picked up from porting is anyones guess. I would seriously look at the shrouding that you have around the intake valve. I stuck with 1.94" intake valves on an engine I recently built, specifically to stay away from shrouding. In this case going to larger valves could lose flow.

Whatever you do, try to maximize intake chamber volume. Strokers like improvements in low lift flow. Minor differnces in heads, intakes and cams can really influence cylinder filling on a stroker.
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Old 09-27-2000, 05:15 AM
sctur601 sctur601 is offline
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I got the engine running but not in my car we wound up putting it in my friends dart to break it in and tune, as my car isnt ready for the engine yet(axle needs to be finished).We ran it on a chassis dyno at the local high school, It did fairly well 358 rw hp and 372ftlb so I am happy. So what do you guys think about these numbers are they pretty fair for this engine? Thanks Sctur601
p.s. allredy beat up on a 00 trans am beat him by 15 car leangths in about 1/8th mile race. It was cool.
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