hi folks im new to the a series datsuns and ive just got a hold of a 76 1200 ute and spare sedan.

after some searching ive found some similarities to the a14/a15 and the e15 bottom ends,and it seems pretty possible to use a mix of the bottom ends for a pretty tough forced induction setup.

the e15 crank is said to be able to be machined to fit a series block,im wondering if it can be made to fit the a series cam chain drive or if it can only keep the belt drive and run the e15t head/cam etc

it seems the short rods and strong crank and dished 76mm pistons would make a good start for a low comp ratio.

or maybe just e15t pistons with a machined crown would work in the standard a15 bottom end?
otherwise its probably easier to just bolt the e15t motor in complete,with the dissy mod and bellhousing bolt modded?

i know it would be easier to ca or sr the ute,but id rather something different and the e15t motors are sitting at a mates place.

any info appreciated thanks S.F

Why bother? The A14 crank is forged, and it's easy to get forged A14 pistons. If you want the E15 crossflow head, just fit the entire engine. They say the E15ET head is far away better than other E heads.

I've often wondered how one could machine an E15 crank to fit into an A-Series block. I think the following is correct...

A Series have 50mm mains and 45mm big-ends.
E Series have 45mm mains and 40mm big ends.
All A series rods are forged. The only E series rods that are forged are the E15T motors.

Apparently, all A10's, A12's, A12a's, A13's and some A14's have forged cranks. Some A14's and all A15's have cast cranks. I'm puzzled at this myself because I have had an A15 crank, an A14 crank and two A12 cranks side by side, and apart from the stroke could see no visible difference. But I've also seen a photo of a different style of crank on this site. Its description said it was a forged A14, but I'm not completely sure which ones are which!! How can you tell ??

All E series cranks are cast, except the E15T's.

For low compression, you could use an A14 with A15 pistons with a low compression oval-port head. But I reckon if your coing to turbo, then E15T or CA conversion is the go.