Re: [Chrysler300] rebuilding '64 413 motor

[Mike Apfelbeck <moparmike@xxxx>]

Russ,
According to Chrysler's engine modification handbook, the"purple shaft" 
Street Hemi Grind camshaft has a 284° duration and is listed under part # 
P3690214. The 1968-1976, 383 and 400-4 Bbl. H.P. and 1967-1976, 440 H.P. 
engines have used camshaft # PN3512907, which has 276° duration.
The three bolt camshaft is the 440-6 Bbl. part, # PN 3512033 (1970) or # 
PN3512903 (1971) it has the same timing #s as the high perf 4 Bbl 
camshafts(276°) but has a low-taper design and must be used with matching 
lifters. The 440-6 Bbl engine was the only B or RB engine to leave the 
factory with a three-bolt cam.
Probably more than you cared to know,
Mike

At 08:00 AM 12/6/2003 -0800, Russ Vaughan wrote:

>Hi Guys
>
>Somebody has to clue me in as to which Mopar Performance cam they consider 
>a "purple cam" . The MP cam I've used the most is the "resto" cam 
>268/284, either one or three bolt. All that I recall have had a spray of 
>purple paint on them. The other "common" MP cam is the 292 - 509, I've 
>heard some refer to as a "purple" cam too. Ditto the "Hemi" grind 284 - 
>484 cam. I guess I've always heard of the "purple cam" referred to as 
>any Mopar Performance cam differentiating it from a Comp Cams, Crane, 
>Isky, etc. What's going on that I need to change planets??
>
>300ly
>
>Russ Vaughan
>
>


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