Head Swap

Making sure it may sound stupid but

to swap a 1300 SP to dual port, one only needs to place 1600 DP heads onto the 77mm barrels and it's sweet?

Or is the 1600 head to big and a 1300 DP head needed?

Cheers

SHaun

You can counterbore some older 1600 heads on a mill to fit the 77mm barrel,
but it may be worth just sluicing in some larger barrels.
The will fit straight into the 1300 case(not 1200 though).

cheers dave,