GM LS1 LS2 243 Heads, Cathedral Port, High RPM Proline Springs, assembled Max 0.670" lift. PAIR (2 Heads) Proline Springs

LS 243 Heads Assembled fits LS1 & LS2 5.7L & 6.0L Holden Commodore.

High performance Cathedral Port cylinder heads at a great price & free delivery!

These high quality LS 243 Cathedral ports have an upgrade port design & using premium Stainless Steel valves with DRP Dual Spring kit (PAC Springs). Hand assembled by Total Performance in Melbourne. 

These Cylinder heads are a Performance replacment upgrade to the GM 243 heads. All factory mounting points with the Performance of the 243 port and chamber all assembled and reay to bolt on and go!  

2 Assembled Heads included in sale. 

• Brand New Pair of genuine DETROIT RACING PRODUCTS Cylinder heads.  
• Bronze Valve Guides 0.500" OD x 8mm stem. 
• Hard 355-T6 Aluminium - Race Quality.
• 3 Angle Valve Seats 
• Deck thickness:  0.360"
• Intake Valve size:  2.00" factory size*
• Exhaust Valve size: 1.55"  factory size*
• Intake Port:  212cc
• Exhaust Port:  76cc
• Combustion Chamber:  66cc                  

Exceptional Quality for a Wow factor of a price! 

These Cylinder heads flow and work like you wont believe. Best Bang for your Buck! 

Dont waste your time or money on rebuilding old units - upgrade now. Forget the headaches, poor valve seats, crack testing woes & hassel of exchange. These heads are brand new.

Assembled using: