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750 veloce cams do not have the fuel pump drive lobe on the exhaust cam. Also the lobes are fatter when looking at their profile. The normale cams are very triangular when looking at the profile, veloce cam lobes are more egg shaped. DaveB
 

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750 veloce cams do not have the fuel pump drive lobe on the exhaust cam. Also the lobes are fatter when looking at their profile. The normale cams are very triangular when looking at the profile, veloce cam lobes are more egg shaped. DaveB
Do these look like the original cams from a 1600 Giulia Spider Veloce. They are labeled 10121.....
 

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I have many 750 Normale camshafts and have a 101 1600 Veloce camshafts in my 101 Sprint Veloce engine. My friend bought new 750 Veloce camshafts for his 750 Veloce engine and they have higher lift and more duration than the Normale cams. The fuel pump sprocket will fit on both 750 Normale and Veloce camshafts. I thought that the 750 Veloce camshafts were number and were different for the intake and exhaust sides. The timing marks are only on one side of each camshaft. I think that I do not have any more 750 Veloce camshafts. You can grind the head and fit 101 1300 or 101 1600 Veloce camshafts in your 750 cylinder head. I believe that in the old days, many 750 owners installed later model engines in their cars.
 

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Richard Jemison
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cams

750 cams have smaller base circles and narrow lobes to fit the smaller cam followers of the 750 series.

The cams in the picture are 1600 Veloce cams. (1012103200) These are about the same lobe design (duration at .050 is 245 for both) but have 9.5mm lift where the 1300 Veloce has 9.0 lift. Both are the best "stock" profiles Alfa built. The 1300 V was rated an "6" the 1600 V an "7" where the 1054803200 01 was only rated a "5" with 10.1mm lift (Dur at .050 only 230)

Both of the early Veloce cams are best set at 106/106 LCs for best drivability.

The factory LCs for the 1300 cam was 104.5/106.5 for the Veloce and 99.5/105.5 for the Sprint Speciale
The 1600 Veloce stock LCs were 108/108 to make the car a bit more drivable at lower RPMs.
 

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I went through lots of pain when I was building my race engine.

First thing I found out was that unlike the previous owner I understood that the intake and exhaust cams need to be the same. I agree that the (1012103200) - are Veloce CAMS. However 1600 - Why not 1600 or 1300 - Whats the difference. its 101. The heads are interchangeable with little or no modification.

So what eased my pain in getting my engine built - Jim Kartalamakis book - Alfa DOHC ENGINE has in its last section detailed information on Cams ISBN 978-1-845840-19-8. If you study that closely and compare with what you have then it will be really informative. Helped me enourmously.

Last comment - During the early 60's due to Ralph Nader - US sold cars were "throttled back" due to emission concerns. So what Alfa did was put "milder" cams in US Cars. Bottom line if you get your hands on a European CAM from that era it will perform better than the US supplied CAM of the same era. Check out Kartalamakis and look in detail as to what you have. CAMS make soooo much difference to performance of these engines.

Cheers
 
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