Unknown Cam specs?

Moderator: Moderators

Unknown Cam specs?

Postby starvega » Thu Jan 25, 2018 12:31 pm

Does anybody know how I can determine what the cam specs are without pulling the cam out? I believe it’s the stock hydraulic roller the 502 HO has how would I go about confirming that without a lot of major work? :?:
Posts: 13
Joined: Wed Jan 17, 2018 9:32 am

Re: Unknown Cam specs?

Postby spencerforhire » Thu Jan 25, 2018 2:09 pm

You could check the lift with a dial indicator and see if it matches the specs in the Chevrolet Performance catalog listing for the HO 502, but that can be tricky to get an exact measurement with a hydraulic lifter. Only way to know for sure exactly what's in there is to remove the top timing gear and look at the part #. And that's not actually 100% for sure. Back about 6 years ago I bought a complete running engine out of a drag car that the previous owner had built by some Oval Track shop; I wanted to know the cam specs, so I dropped the oil pan, pulled the front cover and cam gear and I was greeted with nothing legible. The builder had obliterated the part and grind #'s with an engraving tool; obviously some kind of "secret weapon" camshaft.
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
User avatar
Posts: 2444
Joined: Mon Jul 03, 2006 9:02 pm
Location: Halifax, Nova Scotia

1972 Chevrolet Vega Hatchback

Return to Engine Tech

Who is online

Users browsing this forum: No registered users and 1 guest