Vintage RO23/WO23 Camshaft Specs Engle L-158B RB-R-72

Frank Castros · 06-29-2021, 06:20 PM

Too cool post, I had a Racer Brown Cam In my '69 383 Road Runner but I don't recall the number. But it provided the desired results and oh by the way what the hell did I know back then. Car Craft Magazine was the bomb in those days.

DeuceCoupe · 07-01-2021, 08:42 AM

I heard back from Jim at Racer Brown!

He said 72-R is 276 at .050", 318 at .018" (advertised), usually cut on LSA=105, kinda rough idle then. He listed .050 lobe events as 35-61-65-31 which is 2 degrees of advance.

Gross Valve lift .599 intake, .580 exhaust which works out to .3815 lobe lift with 1.57 intake and 1.52 exhaust rockers.

So there you go, he did say he can still make that one but could cut a more modern grind too.

06-29-2021, 06:20 PM	#1
Frank Castros VIP Member Join Date: Nov 2001 Location: The Lowcountry. Posts: 2,987 Likes: 2,622 Liked 2,741 Times in 967 Posts	Re: Vintage RO23/WO23 Camshaft Specs Engle L-158B RB-R-72 Too cool post, I had a Racer Brown Cam In my '69 383 Road Runner but I don't recall the number. But it provided the desired results and oh by the way what the hell did I know back then. Car Craft Magazine was the bomb in those days.

07-01-2021, 08:42 AM	#2
DeuceCoupe Member Join Date: Feb 2016 Posts: 274 Likes: 98 Liked 48 Times in 44 Posts	Re: Vintage RO23/WO23 Camshaft Specs Engle L-158B RB-R-72 I heard back from Jim at Racer Brown! He said 72-R is 276 at .050", 318 at .018" (advertised), usually cut on LSA=105, kinda rough idle then. He listed .050 lobe events as 35-61-65-31 which is 2 degrees of advance. Gross Valve lift .599 intake, .580 exhaust which works out to .3815 lobe lift with 1.57 intake and 1.52 exhaust rockers. So there you go, he did say he can still make that one but could cut a more modern grind too.

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