what cam to run in my lq4 build.
09-16-2016, 05:54 PM
#1
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what cam to run in my lq4 build. Alright guys well im new to owning ls engines although i have known a good amount about them. as of now im swapping in a lq4 into my single cab stebside bed v6..
i purchased a lq4 for $500 tore apart for inspection and replaced main bearings, rod bearings, re ringed and i honed the cyl walls for cross hatching. im pretty lenient about this kinda stuff. now im down to deciding what cam i wanna run. i been really looking into 228/228 .600/.600 tsp cam. sounds and performs good for the street. also throwing in dual springs. i got a ahold of a ls6 manifold im gonna install. already bought the idler relocate bracket and spacer to run a vette or camaro water pump.
anyways what cam can i run that will top out my ls6 manifold.? and whats the biggest cam that these engine can take with dished pistons.?
thank you guys, appreciate it.
i purchased a lq4 for $500 tore apart for inspection and replaced main bearings, rod bearings, re ringed and i honed the cyl walls for cross hatching. im pretty lenient about this kinda stuff. now im down to deciding what cam i wanna run. i been really looking into 228/228 .600/.600 tsp cam. sounds and performs good for the street. also throwing in dual springs. i got a ahold of a ls6 manifold im gonna install. already bought the idler relocate bracket and spacer to run a vette or camaro water pump.
anyways what cam can i run that will top out my ls6 manifold.? and whats the biggest cam that these engine can take with dished pistons.?
thank you guys, appreciate it.
09-21-2016, 09:14 AM
#3
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Vehicle weight, converter stall, idle quality, tuning capability, driveability, all play a factor in what cam to choose.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
09-22-2016, 06:47 PM
#4
Vehicle weight, converter stall, idle quality, tuning capability, driveability, all play a factor in what cam to choose.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
09-22-2016, 06:54 PM
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Vehicle weight, converter stall, idle quality, tuning capability, driveability, all play a factor in what cam to choose.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
You can get a massive cam to fit easily.
It won't idle below 1100, have zero part throttle cruising torque, cause the truck to stall and die in gear with a stock converter, only make top-end power (actually making the truck slower), top out stock injectors (causing it to go lean), etc. Saying you want the biggest cam that fits is an extremely foolish thing to say.
Btw, truck intakes make more torque AND power than the car intakes, so you likely wasted a bunch of money getting the LS6 intake and the parts to run it. Car intakes were designed with hood clearance in mind. You don't have that issue.
So back to cams. What's a decent street cam I can run then, cause I never asked what's the biggest cam I can put on (not going to just curious). I asked what's a good cam that you can use with a ls6 manifold.
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09-22-2016, 07:53 PM
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I planned on polisting my 317s a bit to get rid of the imperfections in the runners.. and talked to a shop about milling my heads maybe .020 nothing crazy to where I need different pushrods, intake manifold fitment problems and etc.
09-22-2016, 08:53 PM
#9
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O RLY?
You can sell the LS6 intake with rails and injectors for $475. That will cover a complete TBSS intake/rails/injectors and ebay TB combo with probably $100 or more left over. The TBSS intake will pick up power/torque from idle to the limiter over an LS6.
Also, you would have to mill about .080" ( or more) per head before you would have noticeable issues getting the intake to bolt up.
Vehicle weight still plays a big factor in cam selection. 6000 LB truck and a cam designed to make power above 5000 RPM is going to be laughably slow.
You can sell the LS6 intake with rails and injectors for $475. That will cover a complete TBSS intake/rails/injectors and ebay TB combo with probably $100 or more left over. The TBSS intake will pick up power/torque from idle to the limiter over an LS6.
Also, you would have to mill about .080" ( or more) per head before you would have noticeable issues getting the intake to bolt up.
Vehicle weight still plays a big factor in cam selection. 6000 LB truck and a cam designed to make power above 5000 RPM is going to be laughably slow.
09-22-2016, 08:57 PM
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O RLY?
You can sell the LS6 intake with rails and injectors for $475. That will cover a complete TBSS intake/rails/injectors and ebay TB combo with probably $100 or more left over. The TBSS intake will pick up power/torque from idle to the limiter over an LS6.
Also, you would have to mill about .080" ( or more) per head before you would have noticeable issues getting the intake to bolt up.
Vehicle weight still plays a big factor in cam selection. 6000 LB truck and a cam designed to make power above 5000 RPM is going to be laughably slow.
You can sell the LS6 intake with rails and injectors for $475. That will cover a complete TBSS intake/rails/injectors and ebay TB combo with probably $100 or more left over. The TBSS intake will pick up power/torque from idle to the limiter over an LS6.
Also, you would have to mill about .080" ( or more) per head before you would have noticeable issues getting the intake to bolt up.
Vehicle weight still plays a big factor in cam selection. 6000 LB truck and a cam designed to make power above 5000 RPM is going to be laughably slow.
09-22-2016, 09:11 PM
#11
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Want something that sounds decent and makes tons of torque? Look for something on a 112 (or smaller) LSA to help bring torque on fast. LSA also helps determine cam overlap which will play a factor in the way it lopes.
Anything with a 23x duration on the intake is going to be a bit too big for your average 4500+ lb truck. I would stick with something in the 212-226 range on the intake/exhaust.
Something like this would sound good and perform decent in your truck and work with stock valvetrain. Its oriented more for all-around performance. Great HP gains without sacrificing any torque. Mild cam for a 6.0.
https://www.summitracing.com/parts/h...make/chevrolet
Anything with a 23x duration on the intake is going to be a bit too big for your average 4500+ lb truck. I would stick with something in the 212-226 range on the intake/exhaust.
Something like this would sound good and perform decent in your truck and work with stock valvetrain. Its oriented more for all-around performance. Great HP gains without sacrificing any torque. Mild cam for a 6.0.
https://www.summitracing.com/parts/h...make/chevrolet
