GM LS 6-bolt

Aussie manufactured Higgins LS-series cast alloy CNC ported heads.

Available to suit LS7, L98/LS3 ports for street and race applications in both aftermarket & factory LS7 rockers.

Starting from $5200 complete with PAC 1905 springs.

LS3 Heads flow over
LS7 Heads flow up to

Our LS heads are available with all these standard features and options:

  • 6 bolts per cylinder
  • Raised runners with extra material on the intake face, allow the use of factory intake manifolds
  • Multiple port configurations
  • Chamber volumes from 55cc to 70cc
  • Made in Melbourne Australia
  • All heads are fully CNC ported and feature CNC valve seats
  • CHE valve guides and seats
  • .750” thick Deck
  • Spring pads will accommodate up to 1.650” diameter
  • Machined to suit both factory LS7 & 7/16 rocker stud bolts - shaft mounted rockers.
  • Come with Victory stainless valves and PAC 1208/109 spring kits.


Can’t see what you’re looking for?

No problem. We have more LS port designs, but cannot possibly list them all, so please don’t hesitate to call or contact us.