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Old 02-09-2009, 05:25 PM
 
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What does this 383 stroker recipe make?!

Hey guys can you tell me by looking at this build what I can expect from this engine? Will this make for a good mud truck motor that is streetable or should i re cam it etc? Here is the break down

4 bolt main block 30 over
Scat 3.750'' stroke steel crank
Streetdancer harmonic balancer
6.0 H Beam connecting rods
Keith Black forged pistons 11:1
Total Seal rings
Lunati Voodo cam 480 lift
Lunati lifters
Competition Cams dual roller timing chain and gears
TrickFlow push rods
TrickFlow Aluminum Heads 64cc 2.02/1.90 ,angled plugs
Competition Cams pro-mag 1.6 roller rockers
Balanced & blueprinted assembly
Edlebrock Victor Junior single plane intake
Mighty Demon dual feed 750 carb
GM HEI dist.

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Old 02-09-2009, 07:30 PM
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What are the rest of the specs on the cam? Just a guess, but judging from the lift figure you're going to need more cam or less compression to have something streetable.
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Old 02-09-2009, 07:44 PM
 
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Greg thanks for the quick reply. Those are all the specs have on the cam right now. So either a bigger cam or different heads to lower the compression?
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Old 02-09-2009, 09:08 PM
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Well, there's more to it than just that, with 11:1 and a small cam, say less than 240 degrees intake duration (measured at .050) you will have too much cranking compression or dynamic compression to run on pump gas, if you go big with the cam then you're probably goind to end up with something that probably wont suit your needs, really need more specs on the cam, and when building an engine you're better off starting with the cam for the intended use and building the rest of the engine with those specs in mind.
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Old 02-10-2009, 07:04 AM
 
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Greg thank you for the information. Ill see what I can find out about the cam. I got this engine for a real good deal and I was hoping I could make it fit my application without too much trouble. Am I out of luck? What do think this set up would be good for? Circle track, strip etc?
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Old 02-10-2009, 05:00 PM
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It's a mismatched cam. I'd call up Lunati or Isky and ask for a better one. preferabley solid tappet.



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Old 02-10-2009, 05:08 PM
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Are we talking about a competitive mud racing truck or just a play truck ? On a competition truck I wouldn't give away any compression. What are you doing for a trans ? converter ? Exhaust ?
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Old 02-10-2009, 09:36 PM
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Use a high-rise dual plane intake such as a Edelbrock RPM or RPM Air Gap or Weiand Stealth or Stealth Air Strike. You'll make more torque and power than you will with the single plane intake.
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Old 02-15-2009, 11:47 AM
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cam will build up too much cylinder pressure for pump gas. if you are going to use this engine on the street, with little or no converter or gear, erson cams used to make cams that helped older high compression engines run on pump gas, using split duration cams that bled off cylinder pressure, but still gave good performance, check with them. if not,240 plus duration at .050 and 3000 plus stall, with decent gearing, and it will be okay on the street. power brakes is questionable.
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