I have a local friend/client whose cam took a dump, and we are going to go ahead and do a swap. Mild with a little lump, just so you know it's there. Would like to go with something similar in a roller setup. Calling on my Buick friends to guide me in the right direction so I don't buy some POS, since I know nothing about the bowtie aftermarket. Thanks!
I can't recommend a roller cam for a Chevy 327, but I used Solid lifter GM Duntov 30/30 camshaft in my 327 SB. It's a very good cam. Excellent rpm range. Just a suggestion. I know a lot of guys don't want to use a solid lifter cam, but, I had excellent service and performance out of it. Excellent idle. Great street cam. Vet
After a couple experiences with cam/lifter failures these past couple years, I am extremely hesitant to go with flat tappet anymore.
Give Bullet or Mike Jones a call....they know the SBC stuff as well as any and have excellent products There are plenty of shelf grinds that will be just fine but I'm betting the above will have a good choice available to ship as well
I'll be the first one to agree with you on that. Amazing how poor flat tappet camshafts and their lifters are made. Got a lot of education from this guy Powell on YouTube. He is very well respected and JW recommends his advise on cams. I have always loved solid lifers cans. They worked well for my street cars. The roller cans scare me because if they come apart it's toast for the engine. That also goes for roller rockers. I will only use solid bushing roller rockers. Just my opinion for what it's worth. Vet (Navy)
I just did a flat tap solid lifter cam last summer so far so good. I used the EDM lifters and ran joe Gibbs break in oil and then his regular Hot Rod oil with the Zinc and all that. Run great faster than ever but could use some head work to make it better yet.
I can tell you the Stock GM 1965-66 327/375 hp cam in a 350 was the go to back in the early 1990’s, roller rockers and it’ll twist to 7500rpm and scream. We wasted many a built BB in a 1972 Chevelle with AV gas in it. But basics today is .600 lift and stroking makes great HP. Buy Cam kits from CompCams ( no Mutha Thumper ) and you’ll be happy.
On my post above? Stock bottom end with double hump heads, Holley 750, T350 and 4:11’s, no interior other than Buckets . Nets 11’s all day, which was fast on the street back then but our budget was nothing.
The engine I am working on? I have no idea. Seems pretty close to stock with a set of headers and a mild cam. Edelbroken 600cfm carb. Not my build, I'm just tasked with fixing it.
I agree 100% on your assessment on the Chevy 327. I had this engine back in the day and it was a screamer. High Performance 327ci small block. We managed to get 450 hp out of it. Built it like a 1964 Corvette 365HP engine and added this manifold - and 11 1/4 to 1 pistons, solid lifter cam (Chevy 30/30 solid lifter), Holly carb 650 spreadbore double pumper, double hump big valve heads, headman headers, T-10 BorgWarner 4-Speed trans, 456 rear gears and this car was one of the fastest street cars in Northern Virginia. In fact, it sometimes even scared me. I'm 75 years old but most people including my wife think I'm still in my teens. My wife is not all that thrilled about me getting a high performance car at my age. Maybe I will grow-up later LOL. Offenhauser 5893 - Offenhauser Low-Profile Dual Ram Intake Manifold This manifold is a take off of the Z28 Camaro during the TransAm racing days in the 60's and early 70's. A very high revving setup (rev easily to 7,000 and beyond) uand little difficulty on normal street driving. You ask, did I get any speeding tickets, plenty, and even had my license suspended once. But what the heck, I was young and dum. JR
Was that the cam that was called the Duntov cam? When I was a bit younger, that's the one that all the Chevy guys wanted.
John, I can answer your question. Yes, it was the Duntov cam. The Duntov solid lifter cam came out in the mid-50's and this camshaft progressed to the power animal it was in the 365 aspirated 365 HP 327 and the 375 HP fuel injected 327. With my 327, I turned in 11.2 et's all day long. Mr. Duntov is much like Dennis Manner. Both were head of their performance departments. Arkus-Duntov began to take the Corvette racing and continually tweaked the small-block V8 in search of more horsepower. The 1957 Corvette showcased an innovative fuel injection system that helped it become the first production car in the world to produce one horsepower per cubic inch of displacement. Arkus-Duntov also developed numerous prototype Corvettes, like the magnesium-bodied Corvette Super Sport, and was instrumental in creating the famous Z06 performance package and the Corvette Grand Sport. He also become the first chief engineer of the Corvette program. Though Arkus-Duntov retired in 1975, his contributions to the Corvette left a lasting legacy that can still be seen today, a phenomenon many refer to as “the mark of Zora.” Vet (Navy)
That's a 30/30 Duntov solid lifter cam in a 69 302 Z28 Camaro. He has chambered exhaust, I used glass packs on my 56 Belair and the sound was meaner through glass packs. Vet
Duntov early in his career also developed the Ardun OHV cylinder head for the Ford flathead V8, which turned the engine into a 3 - main bearing Hemi! It worked though, and several of these engines were run at Bonneville over the years. I also have heard that Zora contributed to the design of the '091 cam for the bigger Nailheads. I have one in the Buchev that Tom Telesco found for me. Unless I am confusing stories, it is the last unrun '091 cam that was known to exist. The story that I remember is that it came in a Display engine that Russ Martin had at his Centerville garage in California. It has just a slightly lumpy idle - enough so that anyone who knows engines understands that this is not your mother's Nailhead.
I did the Crane equivalent of the Chevy 327/350 horse shaft at .447 intake and exhaust. Installed it with a degree wheel Retarded 4 degrees from the card. And used 1.6 rockers over the OEM 1.5 for a little extra lift This was in a 327 cu Chevy w/1.94 intakes and 1.50 exhaust valves port matched to a Performer RPM intake and a BG 625 carb. - and shorty headers. And I got a flashback this morning. He bought and we put a set of World Products SR Torquer Heads on it. They were a Stock Replacement cast iron straight plug head… No HP or TQ Numbers but the owner was happy! It was coupled to an Early 80’s Camaro 5 speed …
