Inliners International Forums General Discussion Engines Chevrolet Camshaft Specifications Table

Posts on this board frequently request camshaft specifications. Awhile ago, I generated a two page table using "WORD" that lists camshaft specifications for the 194, 230, and 250 Chevrolet family of engines. I would gladly send it to one of the moderators on this site if they wanted to post it somewhere, say maybe in the 'Tech Tips'. I have camshaft specifications for the following manufacturers:

Chevrolet, Clevite, Clifford, Comp Cams, Crane Cams, Crower, Engle, Erson, Isky, Langdon, Mercruiser, and Schneider

Winter,

You can email it to me, either thru the Webmaster link or tjtenold@pacbell.net.

Tim

Tim T,

I sent the table files to your tjtenold@pacbell.net address.


Tim W

Thanks, got 'em. I will post them as soon as I can.

Tim

Tim,

I'd certainly be interested in looking at the cam selection since our shop is starting on a 261 Chevy build.

Ron

Ron,

You have a PM.

Tim W

I would like to see this chart, too. Apparently GM changed the cam in the 230 between 1966 and 1967. They went from .332 max lift to .388 max lift. It would be great if I could find something saying this change was made during the 1966 model year - then I could run higher lift in my stocker!

i'd like to see this chart too. it had to take alot of time to compile the info. tom

Ron Golden, Vstock, and tlowe #1716, check your PM's (Personal Messages) on this board.

Tim W.

I posted Winter's cam spec table in the 'Tech Tips' on the Web Site. They are in an Adobe .pdf format for easy downloading if you wish.

Wow that is a big table and lists the .050" lobe which is most useful.
Aside from the integral head (and the Pontiac OHC) I've been aware of 3 cams for this engine:
1.
The 194cid cam, I degreed mine from a 63 Nova engine as:
158-158-111-0a
(Duration I&E at .050", Lobe Separation Angle LSA, and advance)
I took for granted the shop manual lift of
.334 .334
My cam was a bit worn but close enough to this.
I've *assumed* this tiny little cam was used in all the 194/120hp but no others.
I can't find this cam in the Clevite listings.

2.
The 230/140 and 250/155 cam, I measured one in my 250 at
172-172-105 and -1a (ie 1 degree retarded)
.388 .388 lift
I've *assumed* this cam was in all 230/140hp and 250/155hp
Clevite 229-1394 is this cam or very close to it.

3.
The 230hipo and 292 cam, I measured my 292 cam at
188-188-111 and -1a
.406 .406 lift
I've *assumed* this cam was in the 230 HiPerf (the super hot 230/155hp with the chrome valve cover, dipstick, and master cylinder cover for added horsepower) and also in all the early 292/165hp ie truck engines. I've also assumed that the 230HiPerf got the larger 292 Rochester B carb as well though I don't know that to be true it is just rumor.
I think this cam is Clevite 229-1551

Clevite also lists the later "integral head" cam, 172-188 duration, at 229-2270.

Does this make sense to anybody, particularly my guesses about which cam was in the 230/140hp vs. the 230/155hp?

I've been studying the NHRA specs for the 194/230/250, from 1963 through 1972. These only show the lift. The 140 hp 230 is shown as having .335 lift in 1963 and 1964,.332 lift in 1965 and 1966, and .388 lift in 1967, 1968, and 1969. The 155 hp 230 is shown as having .407 lift. The 250 is shown as .388 lift all years it was made.

the 155hp 230 came in every 64 chevelle made with the 230 engine. chevy chromed it up and gave it some muscle to get the attention of buyers. i have a car with one installed(all original) and maybe 2 others out of cars.

so are you saying you must run the .332 or .388 lift. and then any duration? tom

Yes, that's correct. .332 if I run a 66, .388 if I run a 67.

you are going to have to get that revved up to do anything. and then the carb will choke you. it will be a fun time though. tom

I don't mind updating the camshaft spec table every so often, adding different camshafts. When someone verifies the specs for the 194 and/or 230 engines, send me the information. Adequate verification would be either from published documentation or verbally directly from the manufacturer. Tim Tenold actually posts the table, so he will have to oblige also. As he has the electronic file (.doc) to create the graphic file (.pdf), he could actually make the updates himself.

There's another intermediate Rochester B size - the 1954-63 stovebolt 261, which looks like 1-11/16" bore, 1-15/32" venturi.
I think the 292 is 1-3/4"?

Anyone have any CFM data for the B?