Anyone wanna help me try and build an engine?

[DarkoNova]

For a while I wanted a roots supercharged 383. It was basically my dream engine. Then I heard a turbocharged 350 and I have to have one. :yum:

Then gas prices reached an all time high and I figured I'd stick with an n/a build. Accel Gen VII, AFR 195's, etc. Now I've decided that if I'm going to do it, I may as well do it the way I really wanted. :)

I basically just need help picking a cam and maybe rear gears if I need to swap them out.

I want to use an Accel Gen VII setup with AFR 195's. I found some forged rods and a crank, but not sure on a couple things. I was going to use 6" rods for the n/a build because I've always heard/read that the longer rods help to reduce sidewall pressure/force and help the pistons and rings live longer. True or no? Also, I was trying to get the compression ratio as low as I could (around 8:1), but then I read somewhere that you don't want to go too low because then the engine has no power when it's not building boost. Again, true or no? :confused:

I'm looking to get 550-600 hp with this thing. Not worried about how streetable it is. I'll probably run it n/a when I build it while I save for the turbo.

The rest of the drivetrain is a TKO-600 and an 8.5" with 3.42 gears.

Any more info, just ask. :)

Thanks,
Matt

[DarkoNova]

:(

Matt

[Mkelcy]

If you don't mind doing a head swap when you put the turbo on you can have it both ways. I've got a Chevy 383, Eagle forged bottom end, splayed 3 center mains, SRP -16cc forged pistons, "mild" crane hydraulic roller cam. AFR angle milled 195's at 58 cc, with a Vic. Jr. and a 750 Demon carb. Good for about 10.3:1 CR and 465hp/465ft-lbs on an engine dyno simply for break-in. With some tuning it, EFI, etc. it's likely a 500 flywheel hp engine. Down the road, I can swap heads to knock the CR back and throw a turbo on it should I feel the need for more power.

You could do the initial build with a set of used heads and then go to the AFR's when you went to the turbo. Just a thought.

[6'9"Witha69]

550-600 hp on a low comp motor is very difficult to be even close to road worthy. Take Mkelcy's advice and build a good N/A motor then swap parts when you decide to go Forced Induction.

[DarkoNova]

Well I'm definitely not planning on making 550 hp n/a with the super low compression. That power estimate was with the turbo. I wouldn't mind too low of a compression since I could run the cheap fuel, though gas prices are beginning to drop so I suppose it's not that big of a deal.

I could just use my 041 heads, I suppose. Or maybe get some cheap vortec heads. I don't think it'd be too big of a deal to swap out heads when I got the turbo. I just don't want to have to get new internals, too.

Matt