302 H.O. Questions!!!

Topic: 302 H.O. Questions!!! (Read 2492 times) previous topic - next topic

302 H.O. Questions!!!

September 30, 2009, 12:08:56 PM

A guy on a local classifieds site has a 302 h.o. out of a 91 cougar and i was wanting the h.o.cam for my 302 i installed in my 79 cougar a couple weeks ago,,so my question is ,,is that a roller cam or will it work in my motor??? thanks

302 H.O. Questions!!!

Reply #1 – September 30, 2009, 12:27:12 PM

All passenger car 5.0/302 from '86-up are roller... Those cams will not work in a std lifter block...

302 H.O. Questions!!!

Reply #2 – September 30, 2009, 12:28:06 PM

If whatever this said cam is, whatever the cirspoogestances, IS indeed the stock cam from an 80s 5.0 HO, if it is pre-1985, it is not a roller cam, if it is 1985 or newer, it is roller.

302 H.O. Questions!!!

Reply #3 – September 30, 2009, 01:25:22 PM

it can be done. to drill the lifter valley and make it a roller block as long as you have all of the required parts to do so.

302 H.O. Questions!!!

Reply #4 – September 30, 2009, 01:31:50 PM

Quote from: 88turbo;293221

it can be done. to drill the lifter valley and make it a roller block as long as you have all of the required parts to do so.

But you still won't have the proper support for the LONGER roller lifters...

Aftermarket cams for std blocks, have a smaller diameter base circle than the factory cams...

302 H.O. Questions!!!

Reply #5 – September 30, 2009, 02:55:03 PM

he says its not a roller,,it was carbed

302 H.O. Questions!!!

Reply #6 – September 30, 2009, 03:39:14 PM

Quote from: 1979 Cougar XR7;293230

he says its not a roller,,it was carbed

Then it is not a factory 302 HO so you have no way of knowing what cam is in the engine

302 H.O. Questions!!!

Reply #7 – September 30, 2009, 04:19:08 PM

he said a new cam was put in last year,,he only wants 100 for the whole engine intake to oil pan ,,and it runs but all i want is the cam,,hes hurtin for money pretty bad

302 H.O. Questions!!!

Reply #8 – September 30, 2009, 04:25:41 PM

Quote from: thunderjet302;293234

Then it is not a factory 302 HO so you have no way of knowing what cam is in the engine

Weren't the 85 Mustang 5.0 rollers? You do realize someone could have carbed a 5.0 HO right?

302 H.O. Questions!!!

Reply #9 – September 30, 2009, 07:42:08 PM

Quote from: 86XR7project;293244

Weren't the 85 Mustang 5.0 rollers? You do realize someone could have carbed a 5.0 HO right?

Yes I know but no 91 Cougar ever came factory equiped with a carbed 5.0 HO;)

302 H.O. Questions!!!

Reply #10 – September 30, 2009, 08:08:35 PM

If he really wants to make the sale, tell him you want to yank a valve cover and measure a push-rod. That'll tell you if it's a roller cam or not.

Flat tappet 302 push-rods are approximately 6.875" long, while factory roller push-rods are 6.200"...if the engine has an aftermarket roller lifter conversion, they'll be about 6.400" long.

Good luck,
Don

302 H.O. Questions!!!

Reply #11 – September 30, 2009, 08:19:44 PM

Good advice Don...

302 H.O. Questions!!!

Reply #12 – September 30, 2009, 08:21:30 PM

Quote from: TurboCoupe50;293280

Good advice Don...

Thanks buddy, a good idea smacks me across the face every now and again...lol.

302 H.O. Questions!!!

Reply #13 – October 01, 2009, 03:02:05 AM

91-93 cats and birds with the 5.0 supposedly use the 93 cobra spec cam.

302 H.O. Questions!!!

Reply #14 – October 01, 2009, 09:53:31 PM

Quote from: thunderjet302;293272

Yes I know but no 91 Cougar ever came factory equiped with a carbed 5.0 HO;)

There are a few 87-88 5.0 Cougarbirds HERE that are carbed.....Just because something's on a used car when you got it doesn't make it stock

As stated above; ask him what the pushrod length is.

Quote from: Haystack;293343

91-93 cats and birds with the 5.0 supposedly use the 93 cobra spec cam.

The Cobra cam has a 1993 part #. It WAS used in 93 Cougars/Tbirds, but with 1.6 ratio rockers as opposed to the 1.7 ratio rockers in the Mustang Cobra. '91 & '92 model year Cougars & Tbirds 5.0 cars used the H.O. cam.