L48 / Dart Heads
#1
Racer
Thread Starter
L48 / Dart Heads
1978 L48 rebuilt with 20,000 miles. Eldebrock Performer 2101 intake with Q Jet carb and headers.
Would like to put in cam and heads but for now will have to go with just the heads.
Will eventually put in Comp Cam 268H, what Dart cylinder heads would perform the best with this package?
Since I can only go with the heads for now what kind of low end torque could I expect to see without the cam?
Would like to put in cam and heads but for now will have to go with just the heads.
Will eventually put in Comp Cam 268H, what Dart cylinder heads would perform the best with this package?
Since I can only go with the heads for now what kind of low end torque could I expect to see without the cam?
#2
Le Mans Master
If you have the engine torn down to the point of a head install, you might as well put a cam in it.
Last edited by AirBusPilot; 05-18-2015 at 08:47 PM.
#3
Drifting
I made some dyno runs with a similar set up that may help give you an idea of what to expect.
https://www.corvetteforum.com/forums...mp-xe268h.html
The heads for these results were 60cc 2.02 valve Edelbrock Performer heads and the cam was the XE- 268H. I think the take away here is that the cam will appreciate the extra compression of your new heads.
Well, those aluminum heads cracked and I replaced them with a set of Dart Iron Eagles SS 165cc runners with 67cc chambers and 2.02/1.60 valves.
I went with these iron heads because they were close specs, durable and affordable. I can't complain and don't miss much performance
I bought the heads from Terry Rosebush on ebay and assembled myself.
Hope that helps some.
John
https://www.corvetteforum.com/forums...mp-xe268h.html
The heads for these results were 60cc 2.02 valve Edelbrock Performer heads and the cam was the XE- 268H. I think the take away here is that the cam will appreciate the extra compression of your new heads.
Well, those aluminum heads cracked and I replaced them with a set of Dart Iron Eagles SS 165cc runners with 67cc chambers and 2.02/1.60 valves.
I went with these iron heads because they were close specs, durable and affordable. I can't complain and don't miss much performance
I bought the heads from Terry Rosebush on ebay and assembled myself.
Hope that helps some.
John
#4
Race Director
http://www.summitracing.com/parts/tf...make/chevrolet
These 56 CC chamber head gets you 9.9 to 1 am
nd .040 quench on a stock L48 with a Felpro 1094 gasket.
These 56 CC chamber head gets you 9.9 to 1 am
nd .040 quench on a stock L48 with a Felpro 1094 gasket.
#6
Intermediate
1978 L48 rebuilt with 20,000 miles. Eldebrock Performer 2101 intake with Q Jet carb and headers.
Would like to put in cam and heads but for now will have to go with just the heads.
Will eventually put in Comp Cam 268H, what Dart cylinder heads would perform the best with this package?
Since I can only go with the heads for now what kind of low end torque could I expect to see without the cam?
Would like to put in cam and heads but for now will have to go with just the heads.
Will eventually put in Comp Cam 268H, what Dart cylinder heads would perform the best with this package?
Since I can only go with the heads for now what kind of low end torque could I expect to see without the cam?