Join Date: Feb 2001
Thanked 0 Times in 0 Posts
Re: sidekick 1600 botom + 1300 twin cam head
Twin cam G13B head onto G16A block.
The head from this:
...onto this block
Replaces the narrow angle 16 valve SOHC design fitted with throttle-body injection for a 16 valve DOHC equipped with multi-point EFI.
Firstly (in case you're thinking of another way), the 1600 engine's crank is slightly too long to fit in the 1300 twin cam block, which is why this head conversion is the only viable option for a big cube Swift.
A 16 valve 1600 bottom end is the best platform, as it already has valve recesses in each piston. Stud patterns, bolt sizes and galleries all match perfectly. The block should be then equipped with a 1.8mm Vitara head gasket (Part No 1114171C00) to lower the CR to a more manageable level. Compression ratio with this head gasket will work out to just over 10:1.
A cam belt sourced from a belt supplier (such as Gates), is also needed to compensate for the 1600's 30mm taller block. The belt must be connected to the GTi's crank pulley (Part No 12631 53B00) while a smaller diameter tensioner (Part No 12810 53B01000) may give more flexibility when choosing the belt. In addition, custom cam belt covers will need to be fabricated.
The safest and most effective method of controlling fuel and ignition is to use an aftermarket ECU suitably programmed.
Suzuki Auto Centre
Tel: +61 8 8231 7180