David K Posted March 11, 2005 Share Posted March 11, 2005 Can anyone recognize the domestic V8 the Nissan V8 is based on? Id love to know so i can start finding domestic parts for the build. This is a FRONT HALF automatic President bellhousing welded to the REAR HALF of a regular Datsun 4-5 speed. I can slip it on and off to any early Z-ZX trans i want. Heres the valve cover from the passenger side of the engine. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 11, 2005 Share Posted March 11, 2005 Wished I could help as this is one project I'd love to see completed. Can you supply numbers for the bore and stroke? I'm thinking all the reciprocating parts should have a close fit with domestic parts, even with a minor bit of machining (hopefull the crank is in good shape?). Gaskets would seem the be the biggest problem. Quote Link to comment Share on other sites More sharing options...
David K Posted March 11, 2005 Author Share Posted March 11, 2005 Yes Terry i can supply a little bite of info 3988cc 92x75 b&s 195 hp 237 ft/lb 9.0:1 4bbl carb Im thinking a 10:1 or 11:1 compression ratio with head work would put me in the 300hp range. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 11, 2005 Share Posted March 11, 2005 Smaller bore than I thought. From the photos it looks like a hybrid (no pun intended) of Ford, Chevy, and Mopar. Throughout the decades that I've done this stuff with cars, I am still amazed at what I've seen in regards to parts from one engine being modified, and then re-used in another make. With the exception of crank, heads, and cam, the odds of finding a piece that will work are pretty good I would think. Quote Link to comment Share on other sites More sharing options...
Guest Aaron Posted March 11, 2005 Share Posted March 11, 2005 I believe Q45 pistons are 93mm, so with a 1mm overbore you could use piston/rings from it. I also think there is a Toyota six that has 93mm pistons. 92mm works out to roughly 3.62 inchs. I don't know of a US v8 bore that small, unless some of the newer v8s have them. Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted March 11, 2005 Share Posted March 11, 2005 I found this, a Ford 6 has the 3.62 inch bore: "FORD. As with the other two pickups, you have a choice of a six or V8 engine in the Ford pickup line. The overhead valve six is even smaller than the Dodge with only 223 cubic inches. The bore is 3.62 inches, the stroke is 3.60 inches, compression ratio 8.3 to 1 and the horse power is 139." http://www.docmo.net/dodgepowergiants/0300/ddpg0310.htm Here is also a old Ford V8 with that bore: "The little brother of these power mills is a 190-horse V8 that's used in the Custom and Custom "300" series. It's The smallest V8, being 272 cubic-inch, with 3.62 bore and 3.30 stroke. Compression ratio is 8.6 to 1. A double-barrel carb is used." http://www.1957ford.com/history/history3.htm Quote Link to comment Share on other sites More sharing options...
Guest mrmc Posted March 11, 2005 Share Posted March 11, 2005 toyota 22r pistons are 92 mm w/ a 22mm pin Quote Link to comment Share on other sites More sharing options...
ZROSSA Posted March 11, 2005 Share Posted March 11, 2005 Toyota is a good call, I was going to suggest over bored 18r pistons as the stroke is closer. It does have a hemi head though so probably wont work to well. Also have a look at pistons for the rover v8. I think the ones for the 4.0 engine will be close. I am surprised that the engine isnt based on the existing 4 cylinders like the L20. Douglas Quote Link to comment Share on other sites More sharing options...
datsunlover Posted March 11, 2005 Share Posted March 11, 2005 Well.. IIRC, the numbers on the valve cover (1 8 4 3 6 5 7 2) are the firing order for Chevy V8's... where is the distributor on that engine? Quote Link to comment Share on other sites More sharing options...
David K Posted March 11, 2005 Author Share Posted March 11, 2005 The distributor is on the front, installed in a huge front cover just like the timing cover on the L6's. I can take more pics, i am home today. Ive also discovered the b&s is the same as some mid 90's Subaru WRX's. Quote Link to comment Share on other sites More sharing options...
zed240au Posted March 16, 2005 Share Posted March 16, 2005 ive been running a y44 nissan v8 for about 12 years now runs fine neat fit in engine bay on pulling a y40 apart we found they well made 4 bolt mains valve guides 4 barrell manifold but never found anyone who hotted one up or made parts for them interestingly the nissan 6 cyl flywheel bolts up to the crank had my fun motors getting tried now really luv to upgrade to the twin cam 4.5 but think ill be going lt1 or Ls1 way mick Quote Link to comment Share on other sites More sharing options...
David K Posted March 16, 2005 Author Share Posted March 16, 2005 Wow zed240au, Do you happen to have any pictures? I would die to see it in action! Do you have any drag times or dyno run numbers? Ill do anything i can to get my hands on pics! Quote Link to comment Share on other sites More sharing options...
zed240au Posted March 16, 2005 Share Posted March 16, 2005 heaps of pics tell me what youd like to see in spefic will add to my gallery only been to full drag strip once long time ago ran 14.9 sec car is much quicker than that but never been back to try again have done many club days at local race track and hillclimbs car is competive with v8s and turbo 4s and turbo 6s (think the driver holds it back a little) now running holley 600 double pumper bolts straight on to manifold though i did us a spacer to lift it up an inch made my own extractors though will fit with std manifolds mick Quote Link to comment Share on other sites More sharing options...
David K Posted March 16, 2005 Author Share Posted March 16, 2005 heaps of pics tell me what youd like to see in spefic will add to my gallery Everything really! This is groundbreaking to me! Ive ben searching for any info on this engine since i bought it about 2 years ago. Im ecstatic! Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 16, 2005 Share Posted March 16, 2005 92 mm is a very common and popular VW bore. Aircooled FORGED flat-top pistons are CHEAP for them, with rings. So are 94mm Bore. You would have to check pin height, as they can be ordered with a VERY big range of heights for the different rod combos people use in the VW powerplant. But Cima, Mahle, etc all make pistons for the VW in those bores, along withthe spun-cast barrels which you would probably trash. Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 17, 2005 Share Posted March 17, 2005 The internet....What can you say! The incredible shrinking world. Quote Link to comment Share on other sites More sharing options...
Guest nikko74z Posted April 16, 2005 Share Posted April 16, 2005 I have this exact motor sitting on a stand. I took this thing to a local machine shop that has put together several l-28's for me and he told me the valve train loooked like a ford set up. He told me that with a little work, I could have a roller set up using roller lifters, rocker arms, etc. The cam would have to be made. MSD will build a distributor for it. They said send them the stock one and they will do the rest. I have everything except that. I was leaning towards an distributorless system as a result. I am debating on putting it together with a turbo or the 350 with AFR's I have laying around. I will be starting on 1 or the other in July. Quote Link to comment Share on other sites More sharing options...
260DET Posted April 22, 2005 Share Posted April 22, 2005 Wasn't that basic engine turbocharged and raced in the US in 280ZX's? I'm sure I've seen an article on it in the long gone Z car magazine, whatever it was called. Recall some comment that the engine had a mix of Ford and Chevrolet features. Quote Link to comment Share on other sites More sharing options...
David K Posted April 22, 2005 Author Share Posted April 22, 2005 Nikko keep in touch! I need something better under the hood for sure. Tonight i went to the drags with some z guys and posted a horrid 11 second pass in the 1/8. Quote Link to comment Share on other sites More sharing options...
David K Posted April 27, 2005 Author Share Posted April 27, 2005 Ive decided what im doing with this motor. Im rebuilding it using forged pistons and rods. Im having the crank machined and cryo treated. Ill have some head work done with full roller setup as nikko mentioned. Im going to send the exhaust manifolds out to be coated. Im ditching the carb for a camaro TBI setup, thats going to be managed by Megasquirt. The manifolds are able to switch sides letting the exhaust run to the front of the engine. There in going to run both manifolds into a big turbo, or choose to run twins. If i run twins i will route the exhaust into one 3" pipe and run it down the stock exhaust location. Im looking for 350-400 hp with redline around 6k, possibly more without me planning for it. Nikko did you get any pics of your motor? Quote Link to comment Share on other sites More sharing options...
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