MINI & MOKE ROLLER TIP ROCKER ASSEMBLY 1.5 RATIO – A SERIES 1275 [C-AHT446]

Mini & Moke Roller Tip Rocker Assembly – 1.5 Ratio

A-Series 1275cc

High performance 1.5 ratio roller-tip rocker assembly designed for 1275cc A-Series engines used in Classic Minis and Mini Mokes.

These high lift alloy “Purple” roller rockers feature gold anodised steel posts and were originally introduced in 1998 to improve pushrod clearance on later A-Plus cylinder heads.

Designed for performance engine applications, the 1.5 ratio setup increases valve lift substantially over standard rockers, helping improve cylinder filling, volumetric efficiency and overall engine power output.

Features

• 1.5 ratio high-lift roller-tip rocker assembly
• Suits A-Series 1275cc engines
• Alloy purple roller rockers
• Gold anodised steel posts
• Improved pushrod clearance for A-Plus heads
• Reduced valve stem and valve guide wear
• High quality yet cost-effective performance upgrade
• Designed for modern performance camshaft applications

Performance Benefits

• Keeps valves open approximately 20% longer at any given valve position
• Increased valve lift without altering cam timing events
• Improved volumetric efficiency
• Increased airflow and power output
• Reduced friction compared to standard rocker assemblies
• Smoother valve train operation at higher RPM

The roller tip is one of the most important improvements when running modern performance camshafts, significantly reducing side loading and wear on the valve stems and guides.

Recommended Related Parts

• Spacer kit: [C-AEG392]

Important Installation Notes

• Ensure adequate rocker cover clearance before installation
• FP24 rocker covers provide suitable clearance
• Our Alloy rocker [FP26] covers have previously been fitted successfully, however clearance should always be checked carefully
• Minor fettling or careful alignment may occasionally be required depending on engine setup

Perfect for:

• Fast road engines
• Rally builds
• Performance street Minis
• Competition engines
• Modified 1275cc A-Series applications

A quality roller rocker assembly is one of those upgrades you can genuinely feel. Sharper throttle response, improved breathing and a far more aggressive engine character all combine to wake up a performance A-Series engine properly.