Datsun L Series - Putney's Custom Automotive Machine

Putney’s Custom Automotive Machine 40 Rash Lane, Chico, CA 95973

530.892.1451 info@putneyscustommachine.com

E-mail us for a quote for your Datsun engine.

Our reputation was built on L-series engines. We build engines for road racers, Auto-X, hill-climb and dirt track racers to this day. On any given weekend, our engines are out there dominating the competition and winning. We build high powered and reliable Datsun / Nissan engines. Don’t let any old machine shop build your engine. Let the L-series specialists at Putney’s Custom build it for you. We know every technique and trick for making power and performance. We have built them for every application, yours is next!

Here is an example of an engine we are building for a client for the 2009 Circle Track racing season......

Datsun / Nissan L20B - NAPZ Z22 2.3L stroker lower end with a highly modified L20 cylinder head:

NAP-Z Z22 block bored .080” over, crankshaft lightened and balanced, custom made .080” JE pistons

6 inch connecting rods. Modified for oiling on small end for floating piston pins and balanced to within .5 of a gram

L20B cylinder head is modified to use 44mm intake and 38mm exhaust Ferrea stainless steel valves (the biggest possible for this application). Silicon bronze valve guides were installed and all valve seats were removed and replaced with powdered metal for improved hardness.

Here is a P90 cylinder head used on an L28 for an Auto-X only Datsun. Cylinder head is machined to a mirror finish for proper sealing of a MLS (multi-layer steel) headgasket.