engine questions

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Oct 31, 2000 | 12:58 AM

69man

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engine questions

i must first say thanks for all your help, but i have another question. i am planing a engine rebuild for my engine consisting of: a 428 crank, some 410 pistons and connecting rods, a comp cams (as of right now)dual energy cam 275 intake and 285 exhaust, and a performer RPM manifold and a 650 - 700 cfm carb, an the engine i am building this from is a 390 backed by a c-6, i am wondering how good a set of edelbrock FE heads would work for my truck(69 f-250-dosen't do much work is my baby) and if you have any other advice that you would like to give concerning this it would be most appreacited.
69man

Oct 31, 2000 | 02:41 PM

chilly460

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engine questions

The engine you're building sounds like a pretty good combo. of parts. One thing I'd consider, that's a heavy truck so it may be a good idea to advance the cam to get some low end. It depends a lot on what the Intake centerline is on the cam. I don't know your level of knowledge so if you'd like more explanation just let me know. Going to a 410 should help plenty with the torque to get that thing moving. I run the Ebrock heads that you were asking about, I strongly recommend them. From the parts you listed, you're not going for a pure torque motor so these heads are perfect for your application, great all around power. By the time you cleaned up a set of older performance castings, you'd be pretty damn close in price so I wouldn't let $$ stand in the way either. What gears and converter are you running?

Oct 31, 2000 | 06:19 PM

69man

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engine questions

Thanks chilly460 for asking about the converter and gears. for gears i currently have a 3.56 Dana 60, and i think i will stick with them i want to put in a posi but haven't decided. i wasn't sure whether or not i should change the stock one for an aftermarket one, if you have advice on that that would help. another think i am planing on putting the gearvendor overdrive behind the C-6.
thanks for all your help
69man

Nov 1, 2000 | 10:48 AM

chilly460

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engine questions

You should have enough gear as long as you're running standard size tires. I run 4.10's with 38" tires and it still pulls pretty well. For torque converter, you may want to loosen it up a bit, put an RV unit in that's designed to stall at around 1800rpm. Definitely call a converter dealer and discuss it with a tech representative. That's just my opinion, with that much duration you won't have the pure lowend (below 1500rpm) that a stock motor has so it would help to put a little more stall in without going crazy with it.