While you were all at Datnats having fun,
the feral gnomes found a twin cam head that is a bolt up to the A series block. (See photo album or DATRATS.COM.AU
This head is a bolt up and can be adapted with a bit of TIG work, machining and fabrication.
The main problems are in order closing of the pushrod holes, moving some water galleries and modifying the cam drive.
I intend to keep on with this in spare time as I think its reasonably easily do-able.
Why bother? Because I can

Great stuff Errol I was only discussing the other night with another datsun nut . Wondering what you had been upto as we havnt seen you online for a while thought you must be working on some secret project LOL.
I hope it all works out.
BTW how progress with the A13 race head?? have you built a bottom end for it yet??
Cheers Andrew

Ferol you are one Mad Fanatic freak.
Thank goodness for people like you.
Now Im going to hold off on the Rotor until its these heads and blocks are available in kit form from you.
That is if this head can be made to flow like a 4age rather than an mx5.
The other thing is will it be possible to mod the cam to run a belt instead of the chain?
or is it too much work? The reason I ask is because it might be cheaper to play with in the future for performance upgrades and it wont require an alloy cover or those noisy chains.
Keep up the feral work

Andrew,
The A13 Bottom end is alive and well as is the head. About 10 hours work will have it all together. I am looking for a suitable vehicle to put it in.

D,
I dont know if they will ever get to a kit form but they will flow very well. Its like a mini SR with cam on bucket actuation.
I think I will try and keep the stock two chain system for simplicity.

The rest is enough of a challenge.

Feral wouldnt it be better to use this head on a 78mm bore a14 to make full use of the heads original bore size?
Or even a 78mm bore a15 to also use the larger stroke it was designed for?
Or is the forged crank on the a13 and stroke looking at revving at 12,000rpm with this head?

I expect it would be used on A12 engines up to A15's. The 78 mm bore would give plenty of breathing but would work on an A12 just as well.
A large stroke engine would be able to use the breathing capacity of the head a bit better

The biggest issue is the oiling and cooling as my original idea looks like it will have to be ditched in favour of using the A series cover.
This will require a modified cam chain drive with an extra idler pulley.

Quote:
my vehicle's available
for either engine!

what engine is the twin cam head off?

Thanks for that L18_B110, the A13 will get a run a little later this year.

The type of head used is proprietry information at the moment

Quote:


I reckon I know what it is, I was wondering about the possibility a while back, but dont have the resources to experiment..... If you send me a completed one I'll keep quiet

I know what it is too but!!!
I prefer someone like Feral to finish it off first.
Hell work out all the bits and pieces as he does always with crazy passion.
Then when hes ready to sell them to others, then we`ll be in like flynn.

So everyone stop asking what it is from
and let Feral be feral