SanadaSand207

I bought this motor locally and the owner said it had an LS crank when I showed it to my friend I was told that this was a GSR crank. Looked online to for comparison and they all looked different from mine. Even the codes on them were all different A3-4-4 and I misplaced a micrometer to double check. What the f**** is on my table.

SanadaSand207

Anyone?

wunfstgsr

https://honda-tech.com/forums/tech-m...ation-3043880/

wunfstgsr

There's a small flat plate surface on the journal closest to where the crank pulley is. That marking helps determine which crank it is without going through all the micrometer headache.

B1-B4 = LS or B20 Crank
R= Type R Crank.
6 = B16
7 = GS-R

Honda Crankshaft Identification

The AERA Technical Committee offers the following information on crankshaft identification for Honda four cylinder engines. Generally, there are no reliable casting numbers on Honda crankshaft and physical identification is required if the engine family is not known. In some instances, there may be a difference in crankshafts for the same engine family. Refer to the chart below to assist in
crankshaft identification, all dimensions are given in inches.

Total Length Flange Bolts
Nose Dia. Counterweights
Main Size Oil Pump Drive
Rod Size cc Displ.
Stroke Year Engine Model
---------------------------------------------------------------
16.5 .865 1.968 1.574 2.992 6 4 No 1169 1972-79 EB, EE
16.5 .865 1.968 1.574 2.992 6 4 No 1238 1972-79 EB, EE
16.6 .865 1.968 1.574 3.228 6 4 No 1300 1980-83 EJ, EN
16.6 .865 1.968 1.574 3.228 6 4 No 1335 1980-83 EJ, EN
16.6 .865 1.968 1.653 3.405 6 4 No 1488 1974-83 ED, EM
16.6 .865 1.968 1.653 3.396 6 8 No 1601 1980-83 EP
16.6 .865 1.968 1.653 3.661 6 8 No 1599 1976-78 EF
16.6 .865 1.968 1.653 3.700 6 8 No 1751 1980 EK, W/10mm Fly/Bolts
16.6 .865 1.969 1.653 3.700 6 8 No 1751 1981-83 EK, W/12mm Fly/Bolts
17.5 .865 1.771 1.495 3.326 6 4 Yes 1493 1988-92 D15B1, D15B2
17.5 .865 1.771 1.574 3.070 6 4 Yes 1342 1984-87 D13A2, EV1
17.5 .865 1.77I 1.653 3.405 6 4 Yes 1488 1983-87 D15A1, EW1, EW3
17.5 .865 1.771 1.653 3.150 6 4 Yes ??? ??? EXPORT
17.5 .865 1.969 1.653 3.405 6 4 Yes 1488 1983-87 D15A1, EW1, EW3
17.5 .944 1.771 1.653 3.405 6 8 Yes 1488 1983-87 D15A1, EW1, EW3
17.6 .865 1.771 1.495 3.070 6 4 Yes 1342 1984-87 D13A2, EV1
17.6 .865 1.771 1.653 3.326 6 8 Yes 1493 1988-92 D15B1, D15B2, D15B6
17.6 .865 1.968 1.574 3.070 6 4 Yes 1342 1984-87 D13A2, EV 1
17.6 .865 2.165 1.771 3.543 6 8* Yes 1590 1988-93 D16 SERIES
17.6 .865 2.165 1.771 3.543 6 8**Yes 1590 1988-93 D16 SERIES
17.6 .944 1.771 1.495 3.326 6 4 Yes 1493 1988-92 D15B1, D15B2, D15B6
17.6 .944 1.771 1.653 3.326 6 8 Yes 1493 1988-92 D15B1, D15B2, D15B6
17.6 .944 2.165 1.771 3.543 6 8**Yes 1590 1988-93 D16 SERIES
17.6 .944 2.165 1.771 3.543 6 8* Yes 1590 1988-93 D16 SERIES
17.8 .984 1.968 1.771 3.582 8 8 No 1955^ 1986-89 BS, BT, A20A1, A20A3
17.8 .984 1.968 1.771 3.582 8 8 No 1955^^ 1986-89 BS, BT, A20A1, A20A3
18.5 1.102 2.165 1.771 3.740 8 8 Yes
18.7 1.181 1.969 1.771 3.543 7 8 Yes
19.9 1.102 2.165 1.771 3.503 8 8 Yes 1834 1985-88 B18A
18.9 1.102 2.165 1.889 3.740 8 8 Yes 2056 1990-91 B21A1
19.6 1.181 1.968 1.771 3.567 8 8 Yes 2259 1992-94 B23A1
19.6 1.181 1.968 1.989 3.740 8 8 Yes 2156 1993-95 H22A1

* All Counterweights Are 1.750 Long.
** Second Counterweight is 1.125 Long.
*** Oil Pump is Two Flat Areas Machined Between #1 Main and Pulley
Snout
^ Has 11.5mm Crankshaft Pulley Bolt 11.5mm.
^^ Has 14mm Crankshaft Pulley Bolt 14mm.

The AERA Technical Committee