Thread: 55.2-59 57 Fleetside C4 build
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Old 02-19-2022, 10:19 AM   #101
57FleetsideC4
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Join Date: Oct 2020
Location: CHURCHVILLE NY
Posts: 446
Re: 57 Fleetside C4 build

Quote:
Originally Posted by OKGMC4 View Post
Do you know the cam specs? My 6.0 running flat tops and a 224r TSP cam on 112 lsa got 360 rwhp but I could only get 11mpg. I think the 112 lsa and the 3200 stall converter killed the mileage. My 5.3 got 18mpg in town with stock stall and stock LS1 cam. Small part of the reason I’m going back to the 5.3, adding a turbo, and switching to a 4l80. Hoping to get the power AND the mileage. Also, loved the cam lope but didn’t like the truck shaking at every stoplight.
I do have the cam specs out in the shop and will post them later. This is a cam they use a lot on these engines. Steve
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My 57 Fleetside C4 build. http://67-72chevytrucks.com/vboard/s...d.php?t=817054
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