799 heads
799 heads okay i got the some stock ls1 heads and some local guy is willing to sell me some 799 heads un ported for 320 i was wondering if its worth puthing right now i have ls6 intake and ported tb and slp mafs...with these heads unported and a good tune will i see good power with decent mpg or what about being ported whats better and also i want to go with a mild cam like 228 im tryna get 25 -30 mpg i have sanderson headers. its in a 67 camaro 6 speed 373 gear ration
with some 799 heads good tune maybee a cam later you think ill be seeing 25-30 mpg
thanks
louis
with some 799 heads good tune maybee a cam later you think ill be seeing 25-30 mpg
thanks
louis
799s are the equivalent of 243s and do flow more than stock 241s. CNC ported 799s, if done properly can be excellent heads. Based on my experience with heads/street-orineted cams/tune set-ups, your gas mileage should be at least as good as stock and often a little better.
Joined: Aug 2007
Posts: 24,241
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From: Turnin' Wrenches Infractions: 005
The heads flow more air then regular LS1 heads. A cam will like that. They will make more power. I might hold onto them until you can afford to have the CNC'd if you want the most power.
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
CNC is the machine. It's computer numeric control. That means it runs a program. The operator designs the program and the machine follows the commands. Prices for these machines can easily exceed $100k. They typically get a great set of hand ported heads, design a program to tell the CNC how to duplicate the hand port, then you just stick heads in it and it reproduces it perfectly over and over again.
