JelmerPatrol Posted May 21, 2014 Share Posted May 21, 2014 A guy I know has a bussiness in rebuilding gearboxes and engines. They imported lots of engines and gearboxes from Japan in the past and still has a L series engine. The block/head combo are both N42 stamped and the intake manifold says "NAPS computer system" with the twin butterfly throttlebody. What are the specs on these? Hp, torque, compression? Quote Link to comment Share on other sites More sharing options...
tecreatta Posted May 21, 2014 Share Posted May 21, 2014 Is it an l28 or l20? I'm guessing it's from an old Cedric. Quote Link to comment Share on other sites More sharing options...
JelmerPatrol Posted May 22, 2014 Author Share Posted May 22, 2014 I don't know. Like I said, the block and head both say N42 while my '84 euro Patrol L28 a F54 block and N42 head has with dished pistons. Quote Link to comment Share on other sites More sharing options...
blue72 Posted May 22, 2014 Share Posted May 22, 2014 On the opposite side of the block from where the N42 is cast, at the back of the engine there will be a flat spot with the engine displacement (L20, L28, etc...) and engine serial number. Its on the same side as the cast cylinder head number, just at the back of the block. Since it is an N42 block and head, I'm going to go ahead and guess it is probably an L28, but not 100% certain as far as foreign markets go. I've only ever seen one or two pictures of the NAPS twin butterfly progressive throttlebody. Those never came to the US, so not many of us over here will be able to help much on that front. Quote Link to comment Share on other sites More sharing options...
Tony D Posted May 24, 2014 Share Posted May 24, 2014 There were no L20's made with N42 Castings. It's an L28, likely from a Cedric or Gloria. Nothing special, rated at like 145ps 1 Quote Link to comment Share on other sites More sharing options...
JelmerPatrol Posted May 26, 2014 Author Share Posted May 26, 2014 Thanks, I think I'm going to use this block for a budeget stroker build. Quote Link to comment Share on other sites More sharing options...
Tony D Posted May 27, 2014 Share Posted May 27, 2014 "Budget Stroker" is like "Military Intelligence" "Fair Government" or "Free Lunch" right? Quote Link to comment Share on other sites More sharing options...
JelmerPatrol Posted May 28, 2014 Author Share Posted May 28, 2014 Depents. My last stroker was a succes and ran perfect. This one will too (I hope! ) Quote Link to comment Share on other sites More sharing options...
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