Join Date: Mar 2007
Location: San Antonio, Texas
Centerline 11.1 cam
On our Fall tour, my long-serving (30k miles w/ two different Alfas) ported head developed a catastrophic crack, the resulting failure of which prompted a engine rebuild. We did the work at my old friend Bob Fernald's little shop in Austin. It took awhile but was a memorable experience for me to again work with someone with his skills. When I told Bob this was just like old times, he told me there was a big difference: he can't easily get off the floor and I can't easily kneel down on the floor . . .
So, anyway. I bought a good replacement head from my friend Howard but, when it came to cams, we had in a dilemma. Our solution led us to a very satisfying result. Please read on. My previous head used a Delta A474 12mm intake cam which necessitates cutting notches the cam follower bores. Since this head was to be a temporary replacement while I prepared a new ported head, I decided to fit the Centerline 11.1 cam I'd used as an exhaust cam on the intake side of this replacement head. Mainly as an expedient let's-use-what-we-have-here solution we decided to use a stock 2.0 fuel injection cam on the exhaust side of our head. So: we had the Centerline 11.1 x 254 duration (I think that's right) coupled with a stock FI cam. Basically, all I was hoping for was a decent running motor which I could use until i got the replacement ported head done.
Taking my Super out for a short drive, I immediately noticed an instantaneous throttle response combined with bags of torque and a smooth delivery of power all across the rev range. Well, I thought, this is a satisfying surprise. On my drive back to San Antonio from Austin I took some back roads so I could do some break in miles. Frankly, I couldn't be more impressed with this dumb luck choice of camshafts. With 10.1 Motronics, 40mm Webers w/33mm chokes (restored by Gordon Raymond), balanced bottom end, headers, ignition, and light flywheel my new engine has plenty of torque and a very satisfying increase is unsable power. If you are interested in building a performance street 2 liter, this accidental combination might not have occurred to you but I can strongly recommend using the Centerline 11.1 cam combined with a stock 2 liter fuel injection cam.
Jim . . . '72 Super 1300, '70, 1750GTV, 2nd series,
'62, Lancia Flaminia Zagato3c, 2nd series
Last edited by 180OUT; 04-12-2019 at 05:27 PM.