67 SWB 2wd L31 T56 Build - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70cstdime · 02-19-2018, 05:48 PM

Hi guys,

I haven't been here in years. I'm about to get back into my 67 short bed project and I'm looking for any help i can get. I've had the truck since I was 16. I'm 28 now. It started life as a straight 6 3 speed on the column. Right now its just a roller. Its pretty rough but I will drive it as a bit of a rat.

I plan on using the truck for burnout/hot rod type driving.

I put a 4:10 posi in it and will run a T56 out of a LT1 camaro/trans am.

I have a L31 vortec 350 engine for it that had a bad intake gasket. I picked up a GM performance dual plane intake which converts it over to a 4 barrel. My original plan was to use the LT4 hot cam because I have an old super chevy (i think) article where they make approx 425hp/tq with this eng, cam, stud the heads, valve springs, the intake i bought, a 4 bbl and headers.

So with 425 hp 4:10 gears and a 6 speed it should rip pretty good.

Heres my predicament right now. Im going to look at a complete LT1 T56 car with a bad engine that i intend to buy and use the trans and drivers bucket seats and then resell the car. The owner has the LT4 Hot Cam and roller rockers and associated parts he will throw in for more money.

I want to make sure that this is my best choice for a cam before i go to buy this thing. A lot of guys online say go with the 395 ram jet cam in a truck and that the LT4 hot cam is no good in a truck. Should i worry about using the hot cam? I figure with the truck being a SWB, on the light side, with 4:10s and a 6 speed its really going to be driven more like a car anyway...... The most i will haul with it is my shovelhead.

Any input appreciated. And thanks in advance.

70cstdime · 02-19-2018, 05:52 PM

**** looks like i posted in the wrong section. I can start a copy of this thread in the builds section if need be just let me know.

jessemthompson · 02-19-2018, 06:02 PM

The numbers you think you are going to put down are very ambitious for the setup. That setup won’t come close to 425. I’m not trying to be negative, but realistic. That setup will likely get around 330 to the wheels.

70cstdime · 02-19-2018, 06:09 PM

that was 425 at the crank on a dyno thanks for the reply

70cstdime · 02-19-2018, 06:10 PM

http://www.superchevy.com/how-to/678...cam-355-build/

02-19-2018, 05:48 PM	#1
70cstdime Registered User Join Date: Jan 2008 Location: RI Posts: 18	67 SWB 2wd L31 T56 Build Hi guys, I haven't been here in years. I'm about to get back into my 67 short bed project and I'm looking for any help i can get. I've had the truck since I was 16. I'm 28 now. It started life as a straight 6 3 speed on the column. Right now its just a roller. Its pretty rough but I will drive it as a bit of a rat. I plan on using the truck for burnout/hot rod type driving. I put a 4:10 posi in it and will run a T56 out of a LT1 camaro/trans am. I have a L31 vortec 350 engine for it that had a bad intake gasket. I picked up a GM performance dual plane intake which converts it over to a 4 barrel. My original plan was to use the LT4 hot cam because I have an old super chevy (i think) article where they make approx 425hp/tq with this eng, cam, stud the heads, valve springs, the intake i bought, a 4 bbl and headers. So with 425 hp 4:10 gears and a 6 speed it should rip pretty good. Heres my predicament right now. Im going to look at a complete LT1 T56 car with a bad engine that i intend to buy and use the trans and drivers bucket seats and then resell the car. The owner has the LT4 Hot Cam and roller rockers and associated parts he will throw in for more money. I want to make sure that this is my best choice for a cam before i go to buy this thing. A lot of guys online say go with the 395 ram jet cam in a truck and that the LT4 hot cam is no good in a truck. Should i worry about using the hot cam? I figure with the truck being a SWB, on the light side, with 4:10s and a 6 speed its really going to be driven more like a car anyway...... The most i will haul with it is my shovelhead. Any input appreciated. And thanks in advance.

02-19-2018, 05:52 PM	#2
70cstdime Registered User Join Date: Jan 2008 Location: RI Posts: 18	Re: 67 SWB 2wd L31 T56 Build **** looks like i posted in the wrong section. I can start a copy of this thread in the builds section if need be just let me know.

02-19-2018, 06:02 PM	#3
jessemthompson Registered User Join Date: Nov 2011 Location: Williamsburg, VA Posts: 955	Re: 67 SWB 2wd L31 T56 Build The numbers you think you are going to put down are very ambitious for the setup. That setup won’t come close to 425. I’m not trying to be negative, but realistic. That setup will likely get around 330 to the wheels.

02-19-2018, 06:09 PM	#4
70cstdime Registered User Join Date: Jan 2008 Location: RI Posts: 18	Re: 67 SWB 2wd L31 T56 Build that was 425 at the crank on a dyno thanks for the reply

02-19-2018, 06:10 PM	#5
70cstdime Registered User Join Date: Jan 2008 Location: RI Posts: 18	Re: 67 SWB 2wd L31 T56 Build http://www.superchevy.com/how-to/678...cam-355-build/



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