Included in this listing is a set of brand new pistons, rings and gudgeon pins to fit a 3.9 Rover V8, supplied here with +20 thou pistons and rings. The pistons here give a 9.35:1 compression ratio, meaning that they also make a great upgrade for engines which previously ran an 8.13:1 compression ratio, assuming that your bores are machined to +20 thou. Gudgeon/wrist pins are also supplied for fitting the pistons to your rods, and all parts supplied are the same as we would use when building one of our own engines, so you can be sure of excellent quality.
+20 oversize pistons and rings
9.35:1 compression ratio
Suitable for all 3.9l Rover V8 engines
Correct gudgeon pins suppled
Bores must be sized to +20 before using these pistons and rings.
Leave your gudgeon pins in the freezer for a few hours before fitting, and heat up rods to make assembly easier.
Help with fitting is available from RPi
Fully compatible with petrol and LPG
Engine components are available for Rover V8 engines of all capacities, please enquire if you can't find whaty you're after