A little off topic. But I want your opinion! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sam's 72 · 05-10-2003, 09:46 PM

My son has a 87' SWB truck. 350 stock, fuel injected. This is what he wants to do. He wants to put a comp. cam in it .454 lift, 268 duration, 12 bolt rearend with 373's. headers. I have a set of alum. heads that came off of a L98 vette engine, that I was going to use on a 383 for my truck, but decided to go with a different set of heads, any ways, I am thinking about putting these heads on his truck, they have had bigger valves installed in them, and have been ported and polished, competion valve job done on them. The combustion chambers are 59 cc's, so this will bumb up the compression on his truck just a little. I think the engine now has 8.5:1 with 72 cc heads. If we decide to add these parts to this engine, will the stock fuel injection work out ok on this? If not what will have to be done to make it work? I don't know nothing about electronic fuel injection. What are yall's take on this? Also is there a better intake manifold to get for this set up other then the stock intake keep in mind it is electronic fuel injected?
Sam

sam's 72 · 05-11-2003, 12:55 AM

ttt

73stepside · 05-11-2003, 03:04 AM

that cam is way too lumpy for stock chip tuning. go with a compucam. alot more friendly to the stock tuning. hypertech and such chips aren't woth the money you pay for them when you can do the same with timing and an adjustable fuel pressure regulator. if you do use that cam, then look into burning your own chips. www.thirdgen.org has alot of info on chip burning along with tbi performance. just let the guys know that you don't have a roller cam motor or they will suggest an L98 or Lt1 roller cams.

jimfulco · 05-11-2003, 03:29 AM

Is the block set up for a factory hydraulic roller cam?

sam's 72 · 05-11-2003, 03:31 AM

jim,
I am not sure about the block haveing a roller or not?
Sam

jimfulco · 05-11-2003, 10:49 PM

If it's a truck motor, it probably doesn't, but it may have the lifter guide bosses & cam retainer bosses in it. If it does, maybe you could convert it to hydraulic roller using factory parts. Might get a decent performance increase without confusing the computer too much. If you contact the thirdgen.org people they could tell you if it's do-able.

05-10-2003, 09:46 PM	#1
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	A little off topic. But I want your opinion! My son has a 87' SWB truck. 350 stock, fuel injected. This is what he wants to do. He wants to put a comp. cam in it .454 lift, 268 duration, 12 bolt rearend with 373's. headers. I have a set of alum. heads that came off of a L98 vette engine, that I was going to use on a 383 for my truck, but decided to go with a different set of heads, any ways, I am thinking about putting these heads on his truck, they have had bigger valves installed in them, and have been ported and polished, competion valve job done on them. The combustion chambers are 59 cc's, so this will bumb up the compression on his truck just a little. I think the engine now has 8.5:1 with 72 cc heads. If we decide to add these parts to this engine, will the stock fuel injection work out ok on this? If not what will have to be done to make it work? I don't know nothing about electronic fuel injection. What are yall's take on this? Also is there a better intake manifold to get for this set up other then the stock intake keep in mind it is electronic fuel injected? Sam __________________ 72 LWB chevy truck. Pasadena, Texas

05-11-2003, 12:55 AM	#2
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	ttt __________________ 72 LWB chevy truck. Pasadena, Texas

05-11-2003, 03:04 AM	#3
73stepside Registered User Join Date: Feb 2002 Location: Moore OK 73160 Posts: 974	that cam is way too lumpy for stock chip tuning. go with a compucam. alot more friendly to the stock tuning. hypertech and such chips aren't woth the money you pay for them when you can do the same with timing and an adjustable fuel pressure regulator. if you do use that cam, then look into burning your own chips. www.thirdgen.org has alot of info on chip burning along with tbi performance. just let the guys know that you don't have a roller cam motor or they will suggest an L98 or Lt1 roller cams. __________________ 04 GMC Sierra RCSS 70 CST LWB 04 HD Sportster 1200 Custom

05-11-2003, 03:31 AM	#5
sam's 72 Senior Member Join Date: Nov 2001 Location: Pasadena, Texas, USA Posts: 1,005	jim, I am not sure about the block haveing a roller or not? Sam __________________ 72 LWB chevy truck. Pasadena, Texas

05-11-2003, 03:29 AM	#4
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	Is the block set up for a factory hydraulic roller cam?

05-11-2003, 10:49 PM	#6
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	If it's a truck motor, it probably doesn't, but it may have the lifter guide bosses & cam retainer bosses in it. If it does, maybe you could convert it to hydraulic roller using factory parts. Might get a decent performance increase without confusing the computer too much. If you contact the thirdgen.org people they could tell you if it's do-able.



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