Datsun Mini Truckin Homepage
Forum Home Forum Home > General > Tech Corner > Specs
  New Posts New Posts RSS Feed - Tune up Specs, Head ID, etc.
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Tune up Specs, Head ID, etc.

 Post Reply Post Reply
Author
Message
Braden620 View Drop Down
Moderator Group
Moderator Group
Avatar
Kentuckys Finest

Joined: 15 Jan 2010
Location: Somerset Ky.
Status: Offline
Points: 3067
Post Options Post Options   Thanks (0) Thanks(0)   Quote Braden620 Quote  Post ReplyReply Direct Link To This Post Topic: Tune up Specs, Head ID, etc.
    Posted: 17 Jan 2010 at 8:21pm
Back to Top
Braden620 View Drop Down
Moderator Group
Moderator Group
Avatar
Kentuckys Finest

Joined: 15 Jan 2010
Location: Somerset Ky.
Status: Offline
Points: 3067
Post Options Post Options   Thanks (0) Thanks(0)   Quote Braden620 Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jan 2010 at 9:09pm
Casting # Chamber type   Description
A87 open or closed found on many L-18 and L-20B's. The "domestic" version usually came with open chambers. Many of the "used Japanese import" engines came with the peanut version of this head. Large quantities of these used engines were imported in the 80's, so the peanut version is fairly common. These heads usually have 1.25" intake ports and square exhaust ports. 1.65" intake valves. Exhaust valves can be 1.38" or 1.30"
W53 closed (with some exceptions) This head is from the Japanese market. Some of these castings are for factory fuel injected engines and have notches in the intake ports to accommodate injectors. 1.25" intake ports and square exhaust ports. 1.65" intake valves and 1.38" exhaust valves.

219

11041-V9182

closed The true SSS head from imported used engines or ordered from the Datsun comp. catalog. Later versions could be ordered from the catalog with a V912 casting. 1.50" intake ports, square exhaust ports. 1.65" intake valves and 1.38" exhaust. These are hard to find. Any of the other closed chamber heads can be "converted' to this design by simply opening up the intake port to 1.50" (if that's desired) Some of these heads are marked "A87" on the side, but have "219" cast at the front of the head, just below the timing chain inspection plate.

210
(some have no number)

11041-N2202 SV

open (with rare exceptions) This is the head that came stock on the 510. Tiny 1.125" intake ports, square exhaust ports. 1.50" intake valves and  1.30" exhaust valves. There have been variations reported on the valve sizes. This head is believed to be originally designed for the L-13, and engine never imported to the U.S. I know of one that has the peanut (closed) chamber with 37cc displacement. The earliest versions had more of a "semi-open" chamber design but later examples were the open chamber design. These heads are usually avoided on performance applications.
U67 open The stock cylinder head for many L-20B's. 1.375" intake ports, square exhaust ports. 1.65" intake and 1.38" exhaust valves.
U60 open Identical to the U67 head, this number has been found on very early L-20B's. It seems to be fairly rare.

W58

11041-W5880

open(with rare exceptions) This is the L-20B smog head usually found on '77 and later engines. 1.375" intake ports with ROUND exhaust ports. These exhaust ports have steel liners that help burn off emissions. I know of one of these castings that has closed chambers. These heads don't flow well and are avoided for high-performance applications.
N56  open(?) This is an emissions head that appears to be identical to the W58 casting. 
The combustion chamber design has not been verified yet, but is probably open.
 
   
      
 
Back to Top
Knottyhead View Drop Down
Senior Member
Senior Member
Avatar
Slickhead

Joined: 30 Jan 2010
Location: Elkin N.C
Status: Offline
Points: 1773
Post Options Post Options   Thanks (0) Thanks(0)   Quote Knottyhead Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2010 at 10:36pm
dang the v9182 head is stoll available but rather priceyThumbs Up
Still on the never ending quest to squeeze more from an L series
Back to Top
Rusty View Drop Down
Admin Group
Admin Group
Avatar

Joined: 11 Jan 2010
Location: East Tennessee
Status: Offline
Points: 3247
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rusty Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2010 at 10:38pm
Some good info Braden. Thanks.
Back to Top
Braden620 View Drop Down
Moderator Group
Moderator Group
Avatar
Kentuckys Finest

Joined: 15 Jan 2010
Location: Somerset Ky.
Status: Offline
Points: 3067
Post Options Post Options   Thanks (0) Thanks(0)   Quote Braden620 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Jan 2010 at 10:41pm
no problemo guys, sometimes i run upon some off the wall specs or hard to find stuff (not that the head id was hard to find) and i will post it up from time to time, i know its nice to have one place to go find all of the info you need for your project problems
Back to Top
Knottyhead View Drop Down
Senior Member
Senior Member
Avatar
Slickhead

Joined: 30 Jan 2010
Location: Elkin N.C
Status: Offline
Points: 1773
Post Options Post Options   Thanks (0) Thanks(0)   Quote Knottyhead Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2010 at 2:06am
Still on the never ending quest to squeeze more from an L series
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.047 seconds.