RCU Forums - 40 size heads

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layback2

12-21-2007 08:15 PM

40 size heads

Whats the difference between the La and the FP OS heads is the bolt pattern the same or not even close thanks

eurof2

12-21-2007 09:08 PM

RE: 40 size heads

The FP has 6 bolts and the LA has 4, why do you ask?

layback2

12-21-2007 10:17 PM

RE: 40 size heads

I have never paid much attention to them and have owned quite a few i have a new RJL diesel head but gave all FPs away a couple years ago and was looking for one to dieselize thought the la head was the same but i can see now its not. guess i will try to trade my OS 40 La in on one if i can find a trade thanks for the info

MrMotor

12-22-2007 12:17 AM

RE: 40 size heads

The FP and FSR heads are a match also in the 40 size.

Marcol

12-22-2007 10:22 AM

RE: 40 size heads

FP heads are circular . LA heads are a squarer shape with rounded corners.

The two are completely different

w8ye	12-22-2007 10:36 AM

RE: 40 size heads

Most diesel conversion heads for LA's are round also. They look unusual when mounted on the LA crankcase.

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