Newbie need some help! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

nickz84 · 06-30-2006, 08:18 PM

I have a 79 Gmc Heavy half that I purchased a year ago from my father,I want to start fixing it up and redoing it. I want to put new headers and exhaust on the truck but the problem is,he tells me the engine is a 72' 400 sb I dont know what kind of car that came out of and all I have is some numbers on the block if i give them to someone can they tell me the year and model it came out of? I also need to know if the lug is 5-5 offset because I am buying some rims and I havent got any clue if the offset is right. I really appreciate any help.

79BIG10 · 06-30-2006, 10:36 PM

Welcome to the board

The engine year really doesn't matter too much as long as the spark plugs are the straight style like most heads have. When you get angle plug heads then the headers run into trouble. Look for headers that fit the truck year and 2wd or 4wd depending on your application. Also the wheels are 5 on 5.

**Ron 586** · 07-04-2006, 10:48 AM

Welcome to the board from West Tennessee. 79BIG10 told you right. Good luck with your project.

06-30-2006, 08:18 PM	#1
nickz84 Registered User Join Date: Jun 2006 Location: Las Vegas.Nv Posts: 11	Newbie need some help! I have a 79 Gmc Heavy half that I purchased a year ago from my father,I want to start fixing it up and redoing it. I want to put new headers and exhaust on the truck but the problem is,he tells me the engine is a 72' 400 sb I dont know what kind of car that came out of and all I have is some numbers on the block if i give them to someone can they tell me the year and model it came out of? I also need to know if the lug is 5-5 offset because I am buying some rims and I havent got any clue if the offset is right. I really appreciate any help.

06-30-2006, 10:36 PM	#2
79BIG10 I'm back with 2nd truck! Join Date: Feb 2002 Location: Texas Posts: 3,775	Re: Newbie need some help! Welcome to the board The engine year really doesn't matter too much as long as the spark plugs are the straight style like most heads have. When you get angle plug heads then the headers run into trouble. Look for headers that fit the truck year and 2wd or 4wd depending on your application. Also the wheels are 5 on 5. __________________ 1979 Chevrolet Bonanza Big10 "Tootsie Roll" 1985 Chevrolet Silverado (wife's) Member of the Southern Bowties Club "Don't underestimate how sexy a fat man who drinks to excess can be." Homer Simpson Last edited by 79BIG10; 06-30-2006 at 10:36 PM.

07-04-2006, 10:48 AM	#3
Ron 586 RIP Mr Ron Join Date: Dec 2005 Location: Big Sandy, Tn. 38221 Posts: 8,166	Re: Newbie need some help! Welcome to the board from West Tennessee. 79BIG10 told you right. Good luck with your project. __________________ Ron (Mr Round Tuit) Be kinder than necessary, for everyone you meet is fighting some kind of battle TN Message Forum TN Facebook Group SETN Truck Show My Photobucket



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