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  #181 (permalink)  
Old 08-26-2010, 02:06 AM
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Originally Posted by Dirty Biker
Would you guys email me a copy of the program of any of those sims pretty please? dirtyrottenstinkingbiker@yahoo.com
I would if I could, my Performance Trends software is registered and anti-copy protected. I haven't got a clue how to get around the protection.

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  #182 (permalink)  
Old 08-26-2010, 10:55 AM
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Originally Posted by Dirty Biker
Bore 4"
Stroke 3"
Rod Length 6.25"
Cylinder head flow, intake and exhaust 0.100" through 0.700" or whatever the mfg gives for range I don't Know what this means. Can somebody help? I would use stock single hump chevy heads at first then maybe try 1996 and up vortecs. There is 062 heads for sale now for 150$ on cl
Intake valve diameter 1.94
Exhaust valve diameter 1.5
Static compression ratio 10:1
CFM, type of induction (2-bbl, 4-bbl, TBI, TPI) 400 cfm, I think. I have the two barrel carb and the single barrel fish carb. I think they are both about 400 cfm, maybe a little more. I don't know if the motor would ever breath enough even at high rpm to need a quadrajet.
Intake manifold type: Dual plane stock two barrel manifold, I also have a dual plane four barrel manifold from a 350 and a quadrajet, might try it both ways to see if it makes any difference
Exhaust system: small diameter long tube headers, single exhaust pipe and no muffler say 1.5 inch primaries and 30" length
CompCams 12-300-4 [49] There may be a better cam, I didn't call them.

Thanks Alot!
TI stopped by here yesterday, but made no posts. Sooo, might be better to look for an alternative, as I know you are.
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  #183 (permalink)  
Old 08-26-2010, 03:06 PM
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yeah I dloaded a trial version of performance trends engine analyzer pror v3.9. It's fully functional for ten days, I am starting to figure it out I think sorta. Maybe. It is pretty cool, I wish I could just tell it what rpm I want the torque peak and it magically come up with the perfect cam. It still says I need a bigger carb even with 750 cfm quadrajet and stock gm dual plane manifold and fuelie heads. I am prolly doing something wrong. Good news is the 283 motor I made on it burns half as many lbs per hour gas as the stock 454 model I tried for comparison so that is encouraging. It also of course makes less power, but more than half as much, but uses less than half as much gas. If that makes any sense I dunno. If I set the cam profile and heads and intake and huge carb etc to make peak tourqe @4100 rpms with the 454 it burns even more gas. Thirsty big ole bastard...
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  #184 (permalink)  
Old 08-15-2015, 06:59 AM
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flat tops with single eyebrows, zero deck, little 57 cc power pack heads they have a small arrow on the front, fit larger intake and inserted seat on exh. with a cut you will have about 10:1, which is ideal as you won't loose timing. stock chevy intake port matched to heads. RV towing cam, quadrajet carb, try y headers small and long, 2 1/4 single system or twin 2 inch with ballance tube as close to headers as possible, stay out of the secondary's and you will have a gem. good luck. Built engines for years, for a living, mostly chevys.

Last edited by turbo327fire; 08-15-2015 at 07:22 AM.
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  #185 (permalink)  
Old 08-15-2015, 12:19 PM
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5 Year old thread.
“She may not look like much, but she's got it where it counts, kid. I've made a lot of special modifications myself.”

— Han Solo
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