Mahle 3.905 Bore 4.000 Stroke 6.125 Rod -26cc Dish LS2 LS1 5.7 Forged Pistons and Rings 2618

Mahle Motorsport Powerpak Forged Pistons 2618 Low silicon material 930219405 Suits ls1 LS6 3.905" bore 4.000" stroke. 26cc Dish Suits 6.125 rods Includes premium Mahle Performance low drag ring set (1.0,1.0,2.0mm file fit) First photo is generic. Use single piston photos for reference. Listing is for a full set with rings BORE 3.905 STROKE 4.000" ROD 6.125" COMP HEIGHT 1.105" PIN DIAMETER 0.927" VOLUME 26CC Dish WEIGHT 383G MATERIAL 2618 Low silicon COMPRESSION RATIO 62cc head=9.2 65cc head=8.9 71cc head=8.5 2618 Alloy has a low silicon content. 2618 alloy has a greater expansion rate but is higher strength and more resistant to harsh conditions. Because of the greater clearance required 2618 pistons can be noisy on start up but will go away when operating temperature is reached 4032 Alloy has a higher silicon content. Still a great forged piston for power applications but less forgiving to detonation. Because of the lower expansion rate you generally run a tighter clearances which generally makes for a quieter engine. Great for street performance engines and owners who are looking for OE quiet operation and still able to handle power add-ons. If you need any help finding the right piston for your build contact us Mon-Fri 8-4 Here at Malex Motorsports all of our items are in stock in our Sydney based store, ready to ship or pick up. NOW IN SMEATON GRANGE!