71 lq4 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ed taylor · 06-30-2012, 01:00 PM

Putting in a LQ4 6.0 into my 71 C-10. My question is will I gain or lose power by running true duels or a two into one exhaust. I know on my Harley i gain by the two into one, but not sure about the truck. When I bought the motor it came with Sanderson Ceramic coated block hugger headers, with a custom made cross over makeing it a single exhaust.

68GMCCustom · 06-30-2012, 01:28 PM

What size pipes is it? Yes, generally going from a 2into1 to true duals...most people say they feel they have lost some low end grunt. Add an x-pipe and the lower end seems so come back.

ed taylor · 06-30-2012, 03:33 PM

Thanks Kurt. I haven't gotten far enough in this project to begine to think about pipe Dia. I do know it's about time to start a build thread. Up to this point all the pics look just like the rest. But now I'm putting the frame back together (striped down sand blasted, powder coated silver, with ccp grand slam kit, drilled and sloted front disc with braided lines. Tubular trans mount, engine purches and poly everything. The motor has been boared .020 over, with Comp cams, new roller rockers. I had a 700r4 build with shift kit, heavy duty sink, and a 2200 stall. both engine and trans are painted PPG'S "Cooperhead". The cab is almost ready to be reunited with the frame. It was from Ark. but has had the normal stuff replaced etc etc. Man I've got to get thie pics up

06-30-2012, 01:00 PM	#1
ed taylor Registered User Join Date: Jan 2011 Location: ravenna Mi Posts: 10	71 lq4 Putting in a LQ4 6.0 into my 71 C-10. My question is will I gain or lose power by running true duels or a two into one exhaust. I know on my Harley i gain by the two into one, but not sure about the truck. When I bought the motor it came with Sanderson Ceramic coated block hugger headers, with a custom made cross over makeing it a single exhaust.

06-30-2012, 01:28 PM	#2
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: 71 lq4 What size pipes is it? Yes, generally going from a 2into1 to true duals...most people say they feel they have lost some low end grunt. Add an x-pipe and the lower end seems so come back. __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

06-30-2012, 03:33 PM	#3
ed taylor Registered User Join Date: Jan 2011 Location: ravenna Mi Posts: 10	Re: 71 lq4 Thanks Kurt. I haven't gotten far enough in this project to begine to think about pipe Dia. I do know it's about time to start a build thread. Up to this point all the pics look just like the rest. But now I'm putting the frame back together (striped down sand blasted, powder coated silver, with ccp grand slam kit, drilled and sloted front disc with braided lines. Tubular trans mount, engine purches and poly everything. The motor has been boared .020 over, with Comp cams, new roller rockers. I had a 700r4 build with shift kit, heavy duty sink, and a 2200 stall. both engine and trans are painted PPG'S "Cooperhead". The cab is almost ready to be reunited with the frame. It was from Ark. but has had the normal stuff replaced etc etc. Man I've got to get thie pics up



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.