300M Stroker Rods for 4.1L 964 993 with PP104-014N pistons What are these for? These rods were specially designed to work with our 80.4 and 82.4 stroker cranks and Mahle PP104-014N pistons with LN 104mm liners 130mm center to center rods for high efficiency naturally aspirated power! 22mm wrist pins to match the PP104-014N pistons or complete PS104-014N piston / cylinder set Using 80.4 stroke you’ll achieve 4.1L Using 82.4 stroke you’ll achieve 4.2L Here’s a link to LN’s page with the pistons Mahle/LN Engineering 104 pistons for stroker cranks Why 300M vs. 4340 for connecting rods? For the ultimate in strength in high rpm, high boost or high torque turbo engines, 300M is it.  Titanium is light, but not nearly as strong.  4340 is easier to machine and process, but again not as strong.  Used for Ball bearings, air craft parts, aerospace and more, 300M is hard to beat. Higher Strength: 300M is known for its ultra-high strength, making it suitable for demanding applications where high tensile and yield strength are crucial Improved Fatigue Resistance: 300M exhibits superior fatigue strength compared to 4340, which is a critical factor in components subjected to cyclic loading, such as aircraft landing gear. High Toughness: 300M maintains a good level of toughness, ensuring resistance to fracture and impact, even at high strength levels. Common Applications: Aircraft landing gear, airframe parts, flap tracks, and other high-stress components in aerospace, as well as some motorsport applications.  In essence, 300M is the better choice when the application demands the highest possible strength and fatigue resistance, while 4340 is a good all-around choice when cost and ease of manufacturing are important considerations.  Do they look different? 300M and 4340 look very similar.  After forging, machining, shot peening and laser marking they are pretty hard to tell apart. We’ve marked the serial #s on the sides to denote the 300M material Using a hardness tester or sending the material out to a metallurgist would be able to detect the differences. Protomotive Stroker Rods Highlights: Protomotive stroker rods are Forged and shot-peened They are designed to work with Protomotive Stroker Cranks These rods are Available in 125mm center to center for 80.4 Stroker setups which allows you to run OEM configuration compression heights and not be forced into specialty only pistons that may be extremely difficult to install. What are the advantages of these rods? Well, 300M of course! Our stroker rods run the wider bearings from the 996 GT3 crank vs. the narrower 4.0 Gt3 size.  We’ve done this for optimal cushioning of the rod bearing to crankshaft with huge torque builds, where the 4.0 GT3’s are for higher rpm, low torque setups. Protomotive stroker rods also have a wider small end bushing for more wrist  pin support to keep your huge torque from damaging the wrist pin bushings. Combined with our 103.6 p/c’s and 23mm DLC coated wrist pins we’ve found incredible strength in this area that’s previously been an issue for big builds. Designed specifically for the stroker cranks for oil pump clearance without grinding! Stretch & Torque Values for ARP2000 3/8″ Bolts Using the Stretch method, measure 0.0055 – 0.0060 in. when properly torqued. When using a standard torque wrench, tighten to 55 ft-lbs (75 Nm) with ARP Ultra-Torque Fastener Assembly Lubricant Are there any better rod bolts available? Protomotive Rods are supplied with ARP2000 rod bolts for superb rpm capability. Otherwise, ARP3.5 HD bolts available on special request at an additional cost.  Please contact us for these directly. ARP3.5 HD bolts are a very rugged material used in endurance racing mostly.  But also applicable to those that want the best there is! Where can I learn more about Porsches? Be sure to check out Protomotive’s YouTube Channel!