I have an old 265 im building and wondering if the cam is a good one the guy said it had a lopey idle i cant find anything on it but that it was a DUNTOV 097 cam. the number is 3736098 or 96 i cant get it cleared up but sure its a 98. it also has H26, 20 and GM stamped on it. any thing would help. from what i understand its a corvette optioned cam. OH not thats a difference but its .60 over and has forged crank.

 

If the cam is the 097, its part # will end in {drum roll please!} 097.

If the part # ends in ANYTHING ELSE, it's not the 097 cam. It's .... ummmm .... something else.

The 097 was a solid, .485"/.485", 254°/254°, 112° LSA (I could be wrong about the LSA, been a couple of days since the last one I had...). Adjustment was .030"/.030". We all used to call it the "30 across" or "30-30" (like the rifle) cam.

In a 265, yeah, it'll lope. So what. It'll also have NO LEAVE WHATSOEVER, but if the rest of the system is up to the task, it'll light up at about 4000, and really get "up on the cam" at about 6200. Pretty worthless as far as going fast in a street car, especially a heavy one. The one I remember best that I had, was in a 292 in a 69 Chevelle. Totally gutless up to about 35 mph. 0-35 took about 10 seconds (or at least felt like it); but it would SCREAM past that. I could stand on it at 4000, and it would rush up through 1st and BURY the 7000 RPM tach, and I could run all the way through the rest of the gears without the tach ever coming down off its end stop until I hit 4th. Ended up exploding an alternator fan through the hood, and later, a clutch which fortunately the shrapnel all went downwards so I still have my feet.

I would not build that motor again. It was fun occasionally, but most of the time it was a total dog. A 265 would be just that much worse. Used kind of alot of gas too.

There's no such thing as "Corvette optioned" cam.

ALL 265s had forged cranks. That was the only kind they made.

Not sure what you're asking about?

 

The part number on the 097 cam is 3736097 but the casting number on the cam would be 3736098. You may no this already but thought I would mention it just in case: What ever cam you use needs the rear bearing journal grooved to work in the 265 block or you won't get oil to the top of the engine.

 

yes i know about the oil groove but thanks. i got the motor cheap. i get alot of motors. but this one was a good seller for a guy that owned a 56. but when i looked up the number 3736098 the 097 came up. im not a complete moron when it comes to the easy stuff but thats what i found in three sites. AND I THOUGHT BY READING that it was an option. but only 111 corvette owners chose that option, so look that up i may be able to find it again but again thats what i read...
so back to the point does anyone know the specs are of this cam....

 

228-229@.050" right around .400" lift. Solid lifter valve lash is around .014"
You can still buy this cam grind new. If your 265 is a low compression bread and butter "2bbl" motor you will not like this cam. needs 10:1++ lots of gearing and a very high stall with an automatic. this is the stock cam for a 1960's era 283-283HP corvette motor with 461 heads and 11:1 compreession and a 4 speed. 4.10's was a starting point with this cam in a 283. Was not aware it was also used in a 265.
refered to as the Duntov 283-283hp cam.

If you do a google search you can probably find the exact lift specs.
according to the info in http://www.geocities.com/MotorCity/D...00/cmspec.html
there are two slightly different OEM versions of this cam with the same part number.
Back in the day these cams were the cutting edge in street performance cam design using the limited stock valve spring design. The OEM's did a good job of protecting their cam lobe designs by fudging the published timing specs. Wild duration "advertised" numbers without a lifter lift spec to qualify it.

 

i appreciate the help i searched and searched and thats what i kept getting. this was in the 265 i got and im selling it to a friend just wanting to let him know and possibly what i finished putting to gether..... thanks..
BUMP

 

this PDF document has a lot of good info on factory muscle car cams including the cam in question.
http://www.hi-techengine.com/images/...components.pdf
Download it and have a look see.

 

Maybe...Looks like SOMEONE does, maybe not just ANYONE, but SOMEONE at least...

 

I'm confused, are we talking about a 254* cam or a 228* duration cam? Which is which here?

 

My bad.... the 097 was the old "little" solid in the 283/283 (FI) motor.

The one I quoted the specs for is the 346, which is the "off-road" optional cam for the 302 and LT1 motors. That's the one I've used; in my own motor, and in a couple for other people.