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Shelby small block cams. ID?

Started by 68stangcjfb, October 26, 2019, 12:34:55 AM

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68stangcjfb

I have three Shelby small block cams. They are all brand new but I'm not sure which ones are which. One of them has a yellow paint dab at the rear and is stamped HP1. The other two have yellow and pink paint on them and are stamped HDY1. Anyway to figure out what they are?
68 1/2 CJ Mustang GT FB auto 3.91s 68 1/2 CJ Torino GT FB 3.91s 60 Thunderbird 64 Falcon Sprint conv. 4Spd 65 Falcon Sedan Delivery 67 Fairlane 500 SW 428 4Spd, 68 Torino 4dr 95 Thunderbird SC. 89 F250 Supercab 2wd, 98 Mustang conv. 99 Jeep Cherokee 2002 Thunderbird. 96 Harley FLSTN Heritage Special

68stangcjfb

#1
Has anyone used these cams? Would it be worth it to put one of these in an engine today or would they be considered ancient technology?
68 1/2 CJ Mustang GT FB auto 3.91s 68 1/2 CJ Torino GT FB 3.91s 60 Thunderbird 64 Falcon Sprint conv. 4Spd 65 Falcon Sedan Delivery 67 Fairlane 500 SW 428 4Spd, 68 Torino 4dr 95 Thunderbird SC. 89 F250 Supercab 2wd, 98 Mustang conv. 99 Jeep Cherokee 2002 Thunderbird. 96 Harley FLSTN Heritage Special

shelbydoug

I wouldn't bother. Lots of current companies are making "nostalgia" cams with modern timing events and technology. With those you know what you are getting.

There isn't one "original" cam from the era worth the effort. Cam tech has progressed making the originals very crude and very often very poorly designed.
68 GT350 Lives Matter!

gt350hr

  I've never seen a "Shelby" marketed cam marked that way. If they cam in a Shelby box , the HP1 is likely a stock 289 hipo or C3OZ-C cam as that was the entry level solid lifter cam they sold. The other two are likely the hydraulic version of the same cam which Ford sold as the C9OZ-C . Shelby did not grind their own cams. They used Camshaft Machine/Melling and re boxed them. The grinds were limited because of that.
    Randy
Celebrating 46 years of drag racing 6S477 and no end in sight.

68stangcjfb

#4
The guy I got the cams and lifters from found these papers for them. One is the original instruction sheets. 41 steps to remove and 52 steps to install. Talk about thorough! The other is a camshaft spec sheet. Sorry about the sideways photos.
68 1/2 CJ Mustang GT FB auto 3.91s 68 1/2 CJ Torino GT FB 3.91s 60 Thunderbird 64 Falcon Sprint conv. 4Spd 65 Falcon Sedan Delivery 67 Fairlane 500 SW 428 4Spd, 68 Torino 4dr 95 Thunderbird SC. 89 F250 Supercab 2wd, 98 Mustang conv. 99 Jeep Cherokee 2002 Thunderbird. 96 Harley FLSTN Heritage Special