402 BB cam suggestions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

russgt · 11-14-2010, 04:34 PM

I am currently putting together a 71 402 for my 77 shortbox. Its a 4x4 with a 4 speed and 4.10 gears. 33's at the moment with a possibilities of 35s in the near future. The engine is stock bore with stock compression (8.5 to 1 I believe). We are basically just doing a rering/bearing rebuild because the bores are beautifull. I am looking for a hydraulic flat tappet cam with a good rumble and maybe a 5,500 redline. Any suggestions on a cam profile to run? I have headers, performer Rpm, and a few different holleys that I could run.

russgt · 11-14-2010, 04:55 PM

Mod, I probably should have posted this in the engine section, move me if needed.

rollinhard · 11-16-2010, 05:31 AM

Ill look for my cam specs from my 402 build iwas running alittle higher comp and my heads were cleaned up a bit but it should work for your engine aswell. I was running 4spd 4x4 35 thornbirds 4.10gears. My cam was for a little lower Rs but big torque #s I think it was rated for 1600-4000rpm range and had a farly chppy idle. Ill try to get it in the morning.
Posted via Mobile Device

russgt · 11-16-2010, 10:37 PM

thanks, let me know

rollinhard · 11-16-2010, 11:11 PM

heres the #s

11-14-2010, 04:34 PM	#1
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	402 BB cam suggestions I am currently putting together a 71 402 for my 77 shortbox. Its a 4x4 with a 4 speed and 4.10 gears. 33's at the moment with a possibilities of 35s in the near future. The engine is stock bore with stock compression (8.5 to 1 I believe). We are basically just doing a rering/bearing rebuild because the bores are beautifull. I am looking for a hydraulic flat tappet cam with a good rumble and maybe a 5,500 redline. Any suggestions on a cam profile to run? I have headers, performer Rpm, and a few different holleys that I could run. __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

11-14-2010, 04:55 PM	#2
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: 402 BB cam suggestions Mod, I probably should have posted this in the engine section, move me if needed. __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

11-16-2010, 05:31 AM	#3
rollinhard Registered User Join Date: Jun 2010 Location: British Columbia Posts: 192	Re: 402 BB cam suggestions Ill look for my cam specs from my 402 build iwas running alittle higher comp and my heads were cleaned up a bit but it should work for your engine aswell. I was running 4spd 4x4 35 thornbirds 4.10gears. My cam was for a little lower Rs but big torque #s I think it was rated for 1600-4000rpm range and had a farly chppy idle. Ill try to get it in the morning. Posted via Mobile Device __________________ If you can't impress them with your inteligence, dazzle'm with your stupidity 1969 GMC lwb 2wheel drive can you say big stroker motor to come hehe

11-16-2010, 10:37 PM	#4
russgt Registered User Join Date: May 2008 Location: Waukesha, WI Posts: 904	Re: 402 BB cam suggestions thanks, let me know __________________ 70 stepside 76 blazer 86 Silverado 20 Max Trailering 6.2 Crew 71 Nova SS My Blazer build http://67-72chevytrucks.com/vboard/s...d.php?t=363634

11-16-2010, 11:11 PM	#5
rollinhard Registered User Join Date: Jun 2010 Location: British Columbia Posts: 192	Re: 402 BB cam suggestions heres the #s Attached Images __________________ If you can't impress them with your inteligence, dazzle'm with your stupidity 1969 GMC lwb 2wheel drive can you say big stroker motor to come hehe



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.