@ Rezlo. The info is much appreciated.
Are you working at the VW plant in PE?

Im not staying its right to reuse them, you SHOULD change them, but, that said I personaly never have on an A-series due to the cost far out weighing the risk. on every single V8 I ALWAYS change them, but then the cost is minimal like a few hundred rand vs A-series at a few thousand.

I have used VDL, then switched to Goch&Cooper, they are the best regrinders in SA in my opinion, Deon is very helpfull and the 296 profile him and I put together works amazingly well, even as a street car it idles at 950rpm no problem and has plenty of mid range and top end, on the A12 it might not be so friendly, but what I found is that Deon actualy listens to the customers request,

@Rezlo. So are you saying that I must use the original lifters without re-surface? Did you ask Camshaft Dynamics?
I agree, lifters are very expensive. If I can skip changing them, I will. It is just that everyone on the site said I must rather change them for new ones or get the old ones re-surfaced. Racetech said I can just lightly sand them with a sandpaper or something like that. Any opinions?

A12-15 all use the same ARP rod bolt. In the 3 sets I have installed not one of them pulled the rod out of round enough to require re-size.

I use the ARP head studs as well just to be on the safe side, though OEM (not cheapie parts shop) ones should be just fine, I also reuse the stock main and flywheel bolts.

As far as reving to 8000rpm on on a 276, when i was running my VDL 280 it used to fall off totaly at 7500rpm, even my G&C 296 only keep the power up to just over 8000rpm, one of the biggest problems our cam grinders have is not wanting to change the LCA, most of them keep them at/close to stock = 110+ which isnt great, I have had 3 cams cut at 296 with 105-108-110 LCA and the difference in mid range and top end is amazing!

Ohh and when you find somone who can resurface lifters let me know, in not one of my motors have I ever bothered to resurface them due to the cost for lifters being more than a replacement motor, that and when I last checked no one in SA resurfaced&harden them. Three of the motors have already had 2 year freashen ups and not one of them is showing any form of abnormal cam or lifter wear. Though I do agree that they should be part of a cam change!

Some more questions:
The engine blew head gasket once before due to a cracked head bolt. That is why I lost my trust in reusing head bolts.
They did give the head a slight skim when this happened.
I am going to run a 276 spec cam like the one on the tighe website. So you guys say it is fine to re-use the lifters just get it re-faced? The cam will be a stock A12 cam getting reprofiled. Can I then just send the lifters with and ask the guy to re-face them as well?
I have another A12GX spare engine which lifters I can use if the current ones are pitted or damaged which I doubt because the engine in the car has 150 000 genuine km on it.

Who used ARP rod bolts on their A series engines? There are currently two of us (Me and racetech) who are looking for info of which one's to buy and how to install. Clive said it is a V8 engine's rod bolts and there is people saying they must be centre grind to make them sit centre in the rod bolt holes as they are slightly thinner than genuine Datsun rod bolts. Any info here?
Another question. Is there a difference between the A12 rod bolt and A14/15 rod bolts? If the ARP are thinner, maybe they will sit better in the A12 rod bolt hole if the A12 uses thinner bolts.
Any info appreciated.

Who ever heard of head bolts cracking? Let alone when "torqued to correct settings".


Head Bolts are not part of a rebuild, except on TTY designs, of which Datsun engines are not TTY designs.

New rod bolts are not part of a rebuild either, but for 8000 RPM i recommend the ARP bolts. Although new Nissan rod bolts are good too.

Main bearing bolts should be reused. Flywheels bolts too. No reason to replace these.

Torque to Nissan's specifications.

Rebuild will use a new cam, so you must use new lifters. Or they can be refaced for a performance rebuild.

Quote:

It only takes a minimul lick, with a reground cam aswell it will change your rocker geometry. but since you head has probly be'n machined atleast once in its life it porbly correct it some?

great, make me feel bad for re using the main cap bolts, rod bolts and flywheel bolts will ya

Is it acceptable? How much is removed from it when they re-face it.

Whoever grinds your camshaft should be able to re-face the lifters as well.