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Discussion Starter · #1 ·
Hi,

Today I dropped off my '72 Mexican block for boring & honing and other machine work in preparation for my 331 build.
The machinist avised me to have oil restrictors put in, even though the engine won't be raced and won't be turned over 6500rpm.
Are these restrictors a good idea in a street only build?
The machinist didn't ask what type of cam I was going to use, but I understand that should be a factor? (I'm leaning toward a solid flat tappet but I might go with a hydraulic roller)
 

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Ask where they go and what they do...

I've heard of them being used from time to time with some oil systems to keep more oil in the bottom end in the recip assembly.

BOB
 

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Discussion Starter · #3 ·
The ristrictors would go in the oil galleries between the main bearings and the cam bearings, so there would be more available for the main bearings.
My concern is how the cam bearings, lifters and rockers are going to do with reduced oil circulation.
 

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The 302 is not know for needing them. Seems to be more of a thing for the 351 clevelands.
 

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you don't need 'em. The block will break in half before you ever have an oiling problem on a 302.
 
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