New set of (5) J&E A15 race pistons, 76mm complete with pins, clips, and rings.
[SALE pending] New set of (4) Wiseco A12/13 race pistons, 74mm complete with pins, clips, and rings.
[SALE pending] New set of (4) Cosworth A12/A13 race pistons, 73mm. Pistons only. Fit small early A12/13 with 17.4mm pin.
New set of (4) J&E A15 race pistons, 77mm complete with pins, clips, but no rings.
New set of (4) Wiseco A14/A12/A12A race pistons, 76mm complete with pins, clips, and rings.

PRICE: Taking offers on these piston sets. Cosworths are cheaper because you will have to source rings and pins. J&Es and Wisecos cost $550 USD. Accepting the best reasonable OFFER.

SHIPPING: For a set of pistons worldwide, about $40 USD.

Peter
E-mail PeterZekert"at"Juno.com
Cell (3-1-4) 724-7098

Attach file:

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  JE 76 A15 1.jpg (150.72 KB)


  Wiseco 74 A14.jpg (123.38 KB)

Con Rods:

A15 (set of 4), magnaflux OK, piston pin honed, worked rods.
A13 (set of 4), magnaflux OK, piston pin honed, (small 17.4mm pin) worked rods.
A12A (set of 4), stock.
A12A (2), new.
A12A (set of 6), pin bushed, worked rods but the work is not complete.

PRICE: Just like the pistons, I am taking reasonable offers on these rod sets.

SHIPPING: For a set of rods worldwide, about $40 USD.

Peter
E-mail PeterZekert"at"Juno.com
Cell (3-1-4) 724-7098

Pictures will be posted as soon as I can make them fit.

Attach file:

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  Cosworth A12 A13.jpg (140.29 KB)

All the cams have been sold. Thanks, Peter

email sent Peter..

I do have a few sets of used pistons that have life still in them:

(set of 4) Arias 74mm race pistons (19mm pin). $80 USD plus shipping (Shipping around $40 USD worldwide.)
(set of 7) Venolia 74mm race pistons (19mm pin), $150 plus shipping.

Photos soon. Peter

Attach file:

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  Arias 74mm.jpg (184.32 KB)


  Venolia 74mm.jpg (186.53 KB)

So much flash in that pic I can barely see the JE pistons
Are they valve recessed ?
And whats the approx comp ratio

Gidday Peter,

Carbies turned up mate ,

Thank you
Cheers Paul.....

Paul, Good to here you got your bits.

Here are photos of the dual spring and retainer sets. They will fit into our $15 worldwide shipping box. Too bad everything won't fit in the small box. $150 USD per set plus $15 shipping worldwide.

1.25" OD with Datsun Comp blue aluminum retainers. (Set has very little use.)
1.14" OD with lightweight stainless retainers and aluminum spring bases.

Attach file:

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  A Engine 008.jpg (175.34 KB)


  A Engine 011.jpg (182.06 KB)

Hello,

Excuse my ignorance, how many rpm are the dual valve springs you have here good for? I have read that with the right springs you can push the A Series to 8500rpm. I think somewhere else I read the rocker seperating springs need collets or bushes to go this far. I like the idea of 8500rpm max.

These springs are made to go 9000-9500 rpm.

To raise the rpms, we first added a larger oil pump. Next we found that 9000 rpm would require worked rods with better rod bolts (or at least new rod bolts all of the time). When we switched to aftermarket rods we could go to 9500-10,000.

Next we found the valve train weaknesses. Make sure to replace the rocker threads with steel inserts. By using rocker tower studs; or going to 10mm bolts, 10,000 was fine with the A12 (9200-9400 with the A14 and A15).

These springs will safely go 8500 rpm forever, 9200 rpm for a few seasons.