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Discussion Starter · #1 ·
Am trying to confirm whether part number 105.00.02.200.00 is a veloce 1600 rod?
My parts book indicates they should be 105.12.02.020.00 and the standard 105.00.02.020.00 (which is a closer match and perhaps misprint as rod bearings have. 200.xx extensions.)
Has anyone first hand knowledge of what I should find on the veloce items?

Many thanks in advance.

Jim
 

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For what it is worth, having a 1600 Veloce, the only difference between the two rods is the Veloce is forged and the other is cast. If you lay them side by side I do not know if you can tell the difference. Maybe someone knows something I don't?
 

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I've 3 sets here in my shop, one set came out of my GTA engine but appears identical. NO special numbers.
1644569
1644570
1644579
1644580
 

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For what it is worth, having a 1600 Veloce, the only difference between the two rods is the Veloce is forged and the other is cast. If you lay them side by side I do not know if you can tell the difference. Maybe someone knows something I don't?
Sounds important to work out which is forged ... unless you want to risk the health of the rest of the engine ...

I better stop saying all Alfa engines have forged rods
Pete
 

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^^^
I believe those are the two different forgings - not cast. The Veloce forging is probably identical to the later HD 1600 forging - referred to in the parts book as standard for GTA and optional for all other 1600 GT. The rods shown by Gordon look like they have a solid bronze small end insert that looks different than the usual commercially available small end bushes - I have only seen those on GTA ...
 

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Discussion Starter · #7 ·
I had been optimistic the ones on offer were Veloce as the PN below appeared to match some previously sold on the site; not sure of very much now!

Auto part Connecting rod Antique tool Transmission part




Compared to......

 

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I am prepping my 1600 Veloce engine for the rebuild and have my rods/pistons on the bench. My rods do not have any markings on them whatsoever other than the alfabetical lettering. My rods look like the one on the left in Fwkwallis photo. I would venture to say the rod with the 105 numberings is a cast rod for what appears to be if I venture a guess, standard production rods.
 

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Discussion Starter · #9 ·
At present I would tend to concur with Veloce doc's last post unless there is any further insight into late production with PN. I guess over time many PN rods would have subsequently been bench finished making ID harder.

As my need is to make some relatively marginal gains in performance on rebuild veloce rods offered a reliability win referencing originality.
Treated properly with new bolts is the opinion that standard rods are good for +20hp/6500 rpm max where pistons are extra light etc?
Plan is to use Alfaholics 10.5:1 against a unskimmed head.
 

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Alfa rods were always VERY good. Those in my GTA engine checked out perfectly after many years of use and several very high rpm incidents. They were only replaced with a set of Carillos recently as, like me, it seemed they needed to retire from any further abuse. I would not hesitate to put them back to work in any street application. As usual, my opinion from my own experiences.
 
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