question on cam vs springs - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigbadbowtie · 09-05-2006, 09:05 AM

I just picked up a set of fresh 882 heads with a stock replacement valve springs from local shop. My question is... can I get away with a cam thats in the 440 lift range without coil bind. I believe the stock replacement cam is somthing in the .396/.400 lift. I don't think an extra .040 is going to hurt???

Ill check for coil bind but just looking for thoughts...

The heads are going on a fresh flattop 355 and will end up in my 86.
The 180,000 mile 305 is dead tired.

lilpup69chevy · 09-05-2006, 05:42 PM

i had some 882's on my 355 1.94, 1.50 valves and 76 cc's well i ran a 268 cam from comp and had no problem i'm thinkin it was like .454 lift it worked fine however i wouldn't recommend going any bigger than that but it was a great camshaft

**crossy** · 09-05-2006, 07:44 PM

yeah, your good , nuf said . crossy

jimfulco · 09-06-2006, 10:31 PM

Chevy ran as much as .450/.460 lift on standard 3911068 valve springs, the same springs found on 2-bbl V-8's.

bigbadbowtie · 09-07-2006, 08:22 AM

Thanks guys.. I mocked it up last night and all is well.

Hoping to drop it in next weekend. Im still waiting on headers and the carb shop.

krazymonkeys24 · 09-13-2006, 02:20 PM

You could actually run alot bigger cam with the stock springs. I have those heads on my roller 350 with a hot LT-4 cam. That pushes .525 lift with no probs. I went ahead and put in screw in studs, though, just to make sure I didn't knock one loose and may use stud girdles later to even out the tension a little.

09-05-2006, 09:05 AM	#1
bigbadbowtie Registered User Join Date: Sep 2004 Location: Huntsville Alabama Posts: 6	question on cam vs springs I just picked up a set of fresh 882 heads with a stock replacement valve springs from local shop. My question is... can I get away with a cam thats in the 440 lift range without coil bind. I believe the stock replacement cam is somthing in the .396/.400 lift. I don't think an extra .040 is going to hurt??? Ill check for coil bind but just looking for thoughts... The heads are going on a fresh flattop 355 and will end up in my 86. The 180,000 mile 305 is dead tired. __________________ Ray in bama 78 Z28 Camaro,355 roller,10.78@127 86 C10 dog tired 305

09-05-2006, 05:42 PM	#2
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: question on cam vs springs i had some 882's on my 355 1.94, 1.50 valves and 76 cc's well i ran a 268 cam from comp and had no problem i'm thinkin it was like .454 lift it worked fine however i wouldn't recommend going any bigger than that but it was a great camshaft __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)

09-05-2006, 07:44 PM	#3
crossy Oh,you can't buy that new Join Date: Apr 2000 Location: Pennsville,N.J. 08070, USA Posts: 2,039	Re: question on cam vs springs yeah, your good , nuf said . crossy __________________ "been there, done that, ruined the T-shirt". 2007 LBZ GMC Sierra, ECSB 2006 LM7 RCSB Silverado 98 Vortec project. 94,3500,6.5L 4L80 81 SWB GMC POS finally gone 73 Pinto, stock, w/CragarSS's-eww LOTS of Cummins trucks.

09-06-2006, 10:31 PM	#4
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Re: question on cam vs springs Chevy ran as much as .450/.460 lift on standard 3911068 valve springs, the same springs found on 2-bbl V-8's.

09-07-2006, 08:22 AM	#5
bigbadbowtie Registered User Join Date: Sep 2004 Location: Huntsville Alabama Posts: 6	Re: question on cam vs springs Thanks guys.. I mocked it up last night and all is well. Hoping to drop it in next weekend. Im still waiting on headers and the carb shop. __________________ Ray in bama 78 Z28 Camaro,355 roller,10.78@127 86 C10 dog tired 305

09-13-2006, 02:20 PM	#6
krazymonkeys24 Registered User Join Date: Sep 2006 Location: Kannapolis, North Carolina Posts: 23	Re: question on cam vs springs You could actually run alot bigger cam with the stock springs. I have those heads on my roller 350 with a hot LT-4 cam. That pushes .525 lift with no probs. I went ahead and put in screw in studs, though, just to make sure I didn't knock one loose and may use stud girdles later to even out the tension a little.



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