1957 283 283 Camshaft

[Dan P.]

Does any one know who make a direct replacement 097 camshaft .I heard Speed Pro had them ?

[Dennis C.]

Re: 1957 283 283 Camshaft

Dan,

Did you check the Driveline? I believe someone advertises them there.

Dennis

[Dan P.]

Re: 1957 283 283 Camshaft

I searched the Online driveline and did not find it .Is is a company or a individual. Thanks for the reply

[Dennis C.]

Re: 1957 283 283 Camshaft

I searched the Online driveline and did not find it .Is is a company or a individual. Thanks for the reply

Looking at the vendor directory in the online Driveline shows a listing for Duntov Cam on page 38.

Dennis

[Larry C.]

Re: 1957 283 283 Camshaft

Have heard some on this site and possibly on the Forum that Speed Pro 097 clones can be ordered thru local parts stores like NAPA, CarQuest.

I have the Speed Pro number somewhere but could take a bit to find it.

Larry

[Joe L.]

Re: 1957 283 283 Camshaft

Does any one know who make a direct replacement 097 camshaft .I heard Speed Pro had them ?

Dan------


I believe that Jeff Reade is the member selling these camshafts. You should be able to contact him through the members list of this board.

[Richard M.]

Re: 1957 283 283 Camshaft

Napa Sealed Power SEP CS113R

Summit SLP CS113R

and probably Jegs and others.

FYI, the solid lifters are AT 992, also Sealed Power.
http://www.napaonline.com/Catalog/Ca...992_0203945156

http://www.summitracing.com/parts/slp-at-992

I've used both above cam and lifters on several engines. AT992 is also used on the solid lifter cam big blocks. Just installed and ran a set on a '67 427/435. The cam I used was also a Sealed Power.... CS 165R

Note that the lash is not identical to original spec on these designs.

Rich

[Duke W.]

Re: 1957 283 283 Camshaft

The Federal Mogul (Sealed Power and Speed Pro brand names) CS113R is an exact duplicate of the ...097 Duntov cam, manufactured to the GM print (as is the CS165R an exact duplicate of the big block SHP cam without a rear journal groove).

You can improve performance - better low end torque and a slightly tamer idle by having Crane custom grind a cam using the Duntov lobes, indexing the inlet POML at 110 deg. ATC and the exhaust POML at 118 deg. BTDC. This yields a LSA of 114 (versus 110.5 deg. with OE indexing) with a slightly later phased inlet event, 110 v. 108.5, and what you get is essentially a mechanical lifter version of the L-79 cam. The price is about 250 bucks.

The lash on the CS165R is different than GM's recommendation because GM's recommendation doesn't jibe with the lobe clearance ramp height (.012") and nominal rocker ratio (1.7:1). The product of those values is .020". The L-78 lash recommendation is .020/.024". It was changed to .024/.028" for the L-72, but the reason is unknown. I recommend .020/.022", cold, using the indexing scheme in the Hinckley-Williams valve adjustment paper.

Duke

[John D.]

Re: 1957 283 283 Camshaft

Does any one know who make a direct replacement 097 camshaft .I heard Speed Pro had them ?

Dan, Be careful your auto store doesn't order you a CS118R by mistake for your '57. Been there.

My 63 FI car has the CS113R with AT992 lifters even though I had a NOS in the tube 3736097 cam to use.
At 900 RPM the engine puts out 16" of vacuum. As Duke said the specs are right on.

The CS118R is the replacement 30-30 cam. Some here like the LT1 cam. Can't remember who though.

[Dan P.]

Re: 1957 283 283 Camshaft

Thanks for all your help

[John D.]

Re: 1957 283 283 Camshaft

I have heard a lot of postive feedback about the 097 in "The Driveline" by Jeff Reade

[Dan P.]

Re: 1957 283 283 Camshaft

Thanks for your reply