Aussieveedubbers · Tech Mods and Frequently asked Questions

\"AB\" 1300 Twin port- what to do?

https://forums.aussieveedubbers.com/threads/42826/ab-1300-twin-port-what-to-do

ctefeh ·

Gurus,
Picked up one of these and after ripping the barrells off and checking end-play, it needs a heap of work. It came with a 30 PICT 2 and SVDA dissy.

So...the current car is a 1600 TP Semi-auto.

What would be the better STOCK option for upgrading this donk to fit said vehicle?

Bore barrells to O/S 1300?
1500 pistons/barrells and re-jet (or use 34 PICT 3)?
1600 pistons/barrels and use the 34 PICT 3?

Thanks
Ctefeh

Craig Torrens ·

1600 if you have the kit, otherwise buy a 1640cc kit which also fits the case without modifying/machining.

You will need to bore out the 1300 heads though to fit, or just buy 1600TP heads.

What is wrong with the engine currently in the car?

ctefeh ·

Craig,
Accelerator pump discharge tube missing from 34 PICT 3, and when I went to change plugs I had to stop myself as the one I tried was extremely tight. It'll either come out after a soak in penetrant or strip itself in which case it's engine out anyway.
Add a 009 that needs a fettle......nothing much apart from that. First kick starter (despite the acc pump!), doesn't blow weed etc.

However, I would rather have something in reserve just in case.

Regards
ctefeh

Special Air Service ·

I have been told 1300 heads have smaller valves than 1600 heads.
Cheers
SAS

pete wood ·

I had a s/p 1640 with 1300 heads some years back. Had noticably more torque off the lights than the t/p 1640 I had next. Really nice.