L81 Camshaft selection... What do you think?
08-29-2007, 09:48 AM
#41
But, one could leave the heads on, right?
08-29-2007, 12:12 PM
#42
Intermediate
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Location: Saratoga Springs UT
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Yes, you can leave the heads on to change the springs. You would need to use compressed air to pressurize the chamber or fill it with nylon rope.
08-29-2007, 12:43 PM
#43
04-17-2015, 01:21 PM
#44
Heel & Toe
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I guess I'm going for the Comp268H. I had a 79 with the L82 before and I just loved the way it sounded. Looks like the 268H is the closest to the L82 GM151 accept for the SLA (110 instead of 114). I went through a lot of threads and it seems that the 268H fill fit my application and the computer will work with it. Roller lifter? almost $1000 
! I think I'm just gonna go easy on my first camshaft swap and go for a flat tapped hydraulics lifters and roller tip rocker arms.
Can I get the 1.6 ratio rocker arms with stock valve springs without binding??
! I think I'm just gonna go easy on my first camshaft swap and go for a flat tapped hydraulics lifters and roller tip rocker arms.Can I get the 1.6 ratio rocker arms with stock valve springs without binding??
In days past, I had a 1978 Silver Anniversary with L-82. I replaced the L-82 cam with the GM151 cam which I have always liked. It killed the vetts performance for some reason. Switched it back after 1 week. All was good again.
Just food for thought!
04-19-2015, 09:27 AM
#45
Safety Car
I have the crane 2040 (same as H266) in my 73. Bored over .030, Edelbrock 64cc heads, Holley spreadbore 4175 carb on Edelbrock intake.
Magnaflow exhaust system.
Runs great and I average about 18mpg with the od trans and 3.55 gear.
I was going to change cams but the car runs to good to mess with.
Before I added the exhaust and tuned the carb with an AFR meter a Dynojet chassis dyno put it at 220hp, 277max torque in 3rdgear at the wheels for what its worth.
Magnaflow exhaust system.
Runs great and I average about 18mpg with the od trans and 3.55 gear.
I was going to change cams but the car runs to good to mess with.
Before I added the exhaust and tuned the carb with an AFR meter a Dynojet chassis dyno put it at 220hp, 277max torque in 3rdgear at the wheels for what its worth.
04-19-2015, 09:52 AM
#46
I had a 76 L82 with a T400 and replaced the cam with an Isky 264 Mega cam 214-214 .450 lift on a 108 lsa. Lots of low and mid range punch with that cam and a nice throaty idle. Nice cam for a low c r 350.
12-06-2017, 11:42 AM
#47
4th Gear
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taking a chance
Just ordered a xe 262 from comp cams new springs seals keepers retainers an double roller timing set included...apart from true dual exhaust my l81 is all stock the computer still functions great car has great power now. Will the 262 cam still work well with stock engine?
