Small Block Chevy Help

cad · 11-20-2010, 01:22 PM

Decide on your camshaft and gear ratio ASAP.
You will not get a firm recommendation until you decide those pieces. You're going to get multiple OPINIONS and get frustrated.
Figure out what you're going to do with the car the most. I bracket race mine now, but it was a street/strip car just about 4 years ago.

I suggest you call Comp Cams, and then I suggest you call 2-3 converter companies....A-1, UCC and ATI. Converter company will not give you a recommendation until you have the cam card specs.
The camshaft and gear ratio affects how much stall speed you will get.

Regarding gear, if you are going to run anything taller than a 28" tire I would recommend 4.56+ gears. You can EASILY drive it on the street to show shines, GoodGuys, etc.

Clark

69camz28 · 11-22-2010, 09:27 PM

So here's what I'm looking at: Dart Little M block, 4.125 bore with a 4.00 stroke, 427 cu inch. I'll have a Eagle forged crank & 6" H Beam rods, will be about 10.35:1 compression w/ thje forged JE Pistons. The short block assembly was ordered today.

I am llok at going with the AFR 220cc heads, a Super Victor intake, and 950cfm QuickFuel carb.

As for the cam, I'm looking at a Erson solid roller - something at about 270-280 duration at .050, .670 lift and a 112 lobe center.

Any thoughts or suggestions on this combo would be much appreciated. The cam, card & intake are all that is undecided at this point, but I need to decide on a cam very soon.

Thank you for reading

Geerhead55 · 11-23-2010, 01:12 AM

Seems a little light on the compression,,,unless, of course you've wanted to build a pump gas engine. I've been looking into a similar combination also, but I'd be going with at least a 13:1 compression ratio and race gas. My car won't be street driven,,,maybe yours will.
Good luck with your project.
Danny Durham

69camz28 · 11-23-2010, 10:12 AM

Yes, the car will be street driven. Not a lot, but it will be driven some.....

cad · 11-23-2010, 02:57 PM

Call Comp Cams....they will give you a cam spec to use and then you can buy it when you're ready.

rayfin · 11-25-2010, 12:38 AM

I'd say 5.13 gears and the wildest cam known to mankind, but that's just me. I don't think it will fit in stock class...

11-20-2010, 01:22 PM	#1
cad Senior Member Join Date: Apr 2009 Location: Omaha, NE Posts: 702 Likes: 202 Liked 91 Times in 51 Posts	Re: Small Block Chevy Help Decide on your camshaft and gear ratio ASAP. You will not get a firm recommendation until you decide those pieces. You're going to get multiple OPINIONS and get frustrated. Figure out what you're going to do with the car the most. I bracket race mine now, but it was a street/strip car just about 4 years ago. I suggest you call Comp Cams, and then I suggest you call 2-3 converter companies....A-1, UCC and ATI. Converter company will not give you a recommendation until you have the cam card specs. The camshaft and gear ratio affects how much stall speed you will get. Regarding gear, if you are going to run anything taller than a 28" tire I would recommend 4.56+ gears. You can EASILY drive it on the street to show shines, GoodGuys, etc. Clark

11-22-2010, 09:27 PM	#2
69camz28 Member Join Date: Sep 2009 Posts: 148 Likes: 1 Liked 1 Time in 1 Post	Re: Small Block Chevy Help So here's what I'm looking at: Dart Little M block, 4.125 bore with a 4.00 stroke, 427 cu inch. I'll have a Eagle forged crank & 6" H Beam rods, will be about 10.35:1 compression w/ thje forged JE Pistons. The short block assembly was ordered today. I am llok at going with the AFR 220cc heads, a Super Victor intake, and 950cfm QuickFuel carb. As for the cam, I'm looking at a Erson solid roller - something at about 270-280 duration at .050, .670 lift and a 112 lobe center. Any thoughts or suggestions on this combo would be much appreciated. The cam, card & intake are all that is undecided at this point, but I need to decide on a cam very soon. Thank you for reading

11-23-2010, 01:12 AM	#3
Geerhead55 VIP Member Join Date: Sep 2002 Location: Tacoma, Washington Posts: 1,632 Likes: 0 Liked 5 Times in 5 Posts	Re: Small Block Chevy Help Seems a little light on the compression,,,unless, of course you've wanted to build a pump gas engine. I've been looking into a similar combination also, but I'd be going with at least a 13:1 compression ratio and race gas. My car won't be street driven,,,maybe yours will. Good luck with your project. Danny Durham

11-23-2010, 10:12 AM	#4
69camz28 Member Join Date: Sep 2009 Posts: 148 Likes: 1 Liked 1 Time in 1 Post	Re: Small Block Chevy Help Yes, the car will be street driven. Not a lot, but it will be driven some.....

11-23-2010, 02:57 PM	#5
cad Senior Member Join Date: Apr 2009 Location: Omaha, NE Posts: 702 Likes: 202 Liked 91 Times in 51 Posts	Re: Small Block Chevy Help Call Comp Cams....they will give you a cam spec to use and then you can buy it when you're ready.

11-25-2010, 12:38 AM	#6
rayfin Member Join Date: Mar 2009 Location: sioux city Posts: 134 Likes: 1 Liked 0 Times in 0 Posts	Re: Small Block Chevy Help I'd say 5.13 gears and the wildest cam known to mankind, but that's just me. I don't think it will fit in stock class...

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