NMNorsse
OBS Enthusiast
My '88 5.7 has the bosses for the roller cam spider in the intake valley. So I'm assuming a cam retainer plate can be installed but haven't visually verified that.
I've read many of the cam threads here.
I use the truck to tow a boat or trailer and haul materials. I'd like to not have to mess with the computer, my heads are good but I've got a lifter tick so I'm going to have replace those eventually & that would be a good time to upgrade the cam. I'll do an exhaust upgrade at the same time. I've got the 3.73 posi rear diff. The engine, truck and transmission have under 60k original miles and mechanically it is great shape. It could use paint, but I like the patina.
Summit has a roller conversion kit for a Gen 1 block that includes everything for $1,500- lifters, the spider, dog bones, the cam retainer plate, timing set, a cam, springs, rocker arms, push rods, distributor gear, etc... Sum-CSUMSRG1001. Its out of stock right now, but says it could ship at the end of April and I'm not in a huge rush.
www.summitracing.com
The Summit kit comes with their stage 3 cam, which is for high rpms. I think their stage 1 roller cam would be better in my truck and hope they'd substitute it.
www.summitracing.com
The SUM-8800 cam is advertised as "the largest that can be run with a factory tune in 87-96 TBI. It has a perceptible idle and makes great power through the range. A torque converter is not required. Pulls strongly from 1,500 to 6,000 with good valve springs."
Here are the specs:
204/214 Dur., 112 LSA + 1 adv, lift with 1.5 rocker 450/.450., lift w/1.6 rocker .480/.480, range: idle - 5800, I/O -9, I/C 33, E/0 40, E/C -6, overlap -15
Has anyone run that cam, that kit or have any insights into it?
Should I get the 1.5 or 1.6 rocker arms?
Any other tips of things I ought to do while I've got it apart?
Thank you in advance.
I've read many of the cam threads here.
I use the truck to tow a boat or trailer and haul materials. I'd like to not have to mess with the computer, my heads are good but I've got a lifter tick so I'm going to have replace those eventually & that would be a good time to upgrade the cam. I'll do an exhaust upgrade at the same time. I've got the 3.73 posi rear diff. The engine, truck and transmission have under 60k original miles and mechanically it is great shape. It could use paint, but I like the patina.
Summit has a roller conversion kit for a Gen 1 block that includes everything for $1,500- lifters, the spider, dog bones, the cam retainer plate, timing set, a cam, springs, rocker arms, push rods, distributor gear, etc... Sum-CSUMSRG1001. Its out of stock right now, but says it could ship at the end of April and I'm not in a huge rush.
Summit Racing SUM-CSUMSRG1001 Summit Racing™ Gen 1 Small Block Chevy Roller Camshaft Conversion Parts Combos | Summit Racing
Free Shipping - Summit Racing™ Gen 1 Small Block Chevy Roller Camshaft Conversion Parts Combos with qualifying orders of $109. Shop Parts Combos at Summit Racing.
The Summit kit comes with their stage 3 cam, which is for high rpms. I think their stage 1 roller cam would be better in my truck and hope they'd substitute it.
Summit Racing SUM-8800 Summit Racing™ Pro SBC Camshafts | Summit Racing
Free Shipping - Summit Racing™ Pro SBC Camshafts with qualifying orders of $109. Shop Camshafts at Summit Racing.
The SUM-8800 cam is advertised as "the largest that can be run with a factory tune in 87-96 TBI. It has a perceptible idle and makes great power through the range. A torque converter is not required. Pulls strongly from 1,500 to 6,000 with good valve springs."
Here are the specs:
204/214 Dur., 112 LSA + 1 adv, lift with 1.5 rocker 450/.450., lift w/1.6 rocker .480/.480, range: idle - 5800, I/O -9, I/C 33, E/0 40, E/C -6, overlap -15
Has anyone run that cam, that kit or have any insights into it?
Should I get the 1.5 or 1.6 rocker arms?
Any other tips of things I ought to do while I've got it apart?
Thank you in advance.
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