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67Nova421 07-27-2025 03:45 PM

Best performing factory GM intakes?
 
1 Attachment(s)
So I scored this L82 factory GM aluminum intake along with a standard bore 400 engine. Part # 14014432 from what I researched it's a L82 350 intake. Has anyone run this with good results? What are your favorite stock GM intakes to run for best performance? Thanks.

Attachment 73094

Greg Reimer 7376 07-27-2025 06:39 PM

Re: Best performing factory GM intakes?
 
Don't know about that one, I do have a 4067053 aluminum intake very similar to that one if somebody needs it. Anybody?

Jeff Niceswanger 07-29-2025 10:23 AM

Re: Best performing factory GM intakes?
 
Quote:

Originally Posted by 67Nova421 (Post 714848)
So I scored this L82 factory GM aluminum intake along with a standard bore 400 engine. Part # 14014432 from what I researched it's a L82 350 intake. Has anyone run this with good results? What are your favorite stock GM intakes to run for best performance? Thanks.

Attachment 73094

Right after high school I had a 73 Corvette with the L-82. Replaced the 72 LT-1 in the Corvettes. What a turd. I think it had a 5800-factory red line. Still incorporated the 4-bolt block, but the Holley Carb was replaced with the Q-Jet (hence your manifold), the solid lifter cam was replaced with the old 68 350/350 HP hydraulic bumpstick. I think it had 993 heads.....

SS3860 07-30-2025 06:51 PM

Re: Best performing factory GM intakes?
 
Quote:

Originally Posted by Jeff Niceswanger (Post 714902)
Right after high school I had a 73 Corvette with the L-82. Replaced the 72 LT-1 in the Corvettes. What a turd. I think it had a 5800-factory red line. Still incorporated the 4-bolt block, but the Holley Carb was replaced with the Q-Jet (hence your manifold), the solid lifter cam was replaced with the old 68 350/350 HP hydraulic bumpstick. I think it had 993 heads.....


71/72 LT-1 Can use 993 heads also, but with 2.02 / 1.60 valves

Tom Flowers
E/SA 3860


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