Help Identifying "PACE 711" camshafts

[gbasile77]

Hi,

I imagine I need to give Vin Sharp a call, however I was hoping for some help identifiying the specifications for a set of 2.0L camshafts I got from pick-a-part today from a 1980 Alfetta GTV.
The camshafts have a scribe on them saying "PACE 711", so I am obviously hoping I got lucky and they are a set of Vin's cams.

Any ideas?
And most importantly would they fit a 1750 motor?

As a side note, I also picked up a set of volvo 4-piston calipers (1975 244 model) which from initial measurements look like they will bolt straight on to my 68 stepnose, but I'll see how I go.

Thanks.

[gbasile77]

Some more info for what it's worth. The numbers on the cam are 105 20 03 200 00
Aren't these numbers for standard 105 cams? Not even Alfetta?
The PACE 711 is written on the cams in a funny scribe/pen which you can only see under certain light and angle.
They definitely don't look like standard grinds (to my untrained eye). The lift looks somewhere between 11-12mm (using a tape measure).

[Damo105]

It would make sense that the cams had an Alfa cam number on them, as re-ground cams would have been re-grounded from an original set.

[Mat Francis]

The number you provided is a match to what is in all our standard 2L engines. It had me very confused at the time also.

Aside from that, i hate you
I assume you mean the Kilsyth pick a part, and i was meaning to get there all week, but got the flu and obviously didn't make it in time. Congrats on your find (if indeed they are Vin's work).

[GT105]

Yeah those cam numbers you quote are for Alfetta and early 105, whereas 2 litre and 1750 series 2 105 had the higher lift 10548s. I bought a 2 litre engine out of a 74 spider recently which should have 10548s but to my surprise has the 105 20s, but they look like theyve been reground so its probably the case with yours especially if your thinking 11 - 12 mm of lift. Give Vin a call he should be able to help, you might have scored big time.

[gbasile77]

Thanks guys. Yes, pick-a-part in Kilsyth. They are defintely not 1052003 as they only had about 9.1mm of lift, and these cams seem closer to 11 with a nice broad nose. Definitely re-grinds of some sort, I will give Vin a call to solve the mystery cams.

Funny thing is I was pulling out the alternator and couldn't push a screw out, so I needed a hammer to tap the back of a plastic screw driver. So i grabbed the nearest thing which was a camshaft loosely sitting in the head. This is when I noticed the faint writing on the cams.
I also picked the electronic distributor/coil, Does anybody know if the alfetta electronic distributor would fit a 105 1750 motor?
Maybe somebody knows the source car - It is a 1980 GTV yellow with a black bonnet, had some re-upolstered rear seats in black/grey vinyl with lettering "GTV". A lot of bits and pieces painted gold.


The volvo calipers are looking awesome too - I measured a heap of volvo/BMW 4-pots but none looked good, then I found an older 1975 Volvo 244, I measured everything up and they looked pretty good so I took them home. I have done some more measuring and the calipers look like they would just bolt on to my early narrow uprights. The pad area of the 4-pots is MASSIVE, and although I have not weighed them they seem to weigh the same as the stock calipers and maybe even a bit lighter. Hopefully I'll get them trial fitted this week to make sure all is good before I rebuild them. The pad area on these things is close to double the standard Alfa calipers.

[GT105]

Hey Gbasile, my 1600 runs the bosch electronic alfetta dizzy, so should run in your 1750 no problem. In 6 years I've never had a problem, starts and runs beautifully a very sensible upgrade. It will be fitted to the 2 litre when it goes in. Sounds like you did alright at pick a part that day well done

[alfa.nuvolari]

A PACE 711 cam shaft has 244 Duration @ 0.050", 298 Duration @ seat, .016" Inlet Tappet Clearance, .018" Ex. Tappet Clearance, 10.5mm lift at valve.

[alfa.nuvolari]

P.S. The 1750 (or 1800) should be fine with 2l cams so long as there's less than 10.7mm lift with the standard valve train. Most regrinds are of 105 20 03 200 00 or 105 20 03 200 01 standard alfa cams.

[gbasile77]

Thanks Nuvolari! That is excellent information. Do you have any experience with these cams before? How were they and how much 'hotter' than 105.48 cams are they?

Something else I noticed is the inlet cam says "PACE 711", whereas the exhaust one just says "PACE", maybe they are different profiles between inlet and exhaust.

[alfa.nuvolari]

No I don't have any experience with the 711 cams, but from my understanding they are about as 'hot' as you would want to run in a street driven car. They should idle ok above 900rpm and provide good power. I would imagine that they are a matching set.

[GTAM1]

gbasile77
i have the volvo 4 pot brakes fitted to my 105 GT.
You can run EB ED xr6 vented discs with a 10mm spacer as they are 287mm x 70mm height.
Original Alfa GT are 260mm x 70mm. Go to DBA website to confirm specs.
You will need to run 15 inch rims though for clearance.
The brakes are great to use and work better without the booster.
Well done with the cams Vin identifies all his work in that fashion. Check the head also for a PACE stamp which will indicate head work also.
Cheers

[gbasile77]

Thanks for the details regarding the XR6. My volvo calipers were not for a vented rotor though so they might not work. 287 is a good diameter and what I am after to make it work properly.

My mechanic thinks the PACE cams will be too hot for a stock 1750 and car will be fluffy below 2,000 rpm, so I probably won't put them on at this stage.

[gbasile77]

The car is an Alfetta, so I am not sure that the 2L will be an easy fit to my 105 chassis. Where would I see the PACE markings on the head?

[GTAM1]

Normally around the top of the head near the spark plugs.