Home Order Catalog Online Catalog New Items Contact Us
 Prev 
388
Year Horsepower Head Numbers
1960 80 3789426, 6256711, 6256721, 6257838
1961 80 3786588, 3786589, 3787841, 3788738
1961 98 3788739, 3795960, 3796023, 3795960
1962-63 80-84 3813512, 3813513, 3820859, 3886251,
3840578, 3886241, 3886240, 3886250,
3817566, 3817568, 3820857, 3820859,
3886246
1962-63 102 3813511, 3813516, 3886247
1961-63 VANS 80 3817566, 3817568, 3886251, 3786588,
3786589
1962-63 TURBO 150 3817245, 3817286, 3817287, 3886248,
3886249, 3794412
1964 95 3839886, 3839887, 3856626, 3886255
WHAT YEAR ENGINE?
HEADS
(3.740 & 3.800 = top outside diameter of cylinder)
These sketches of the combustion chambers will help you determine which engine you have. All compression was controlled by the cylin-
der head not piston design (exc. for domed pistons in some smog engines). Pay special attention to the area around the spark plug hole.
The 140 can easily be determined by the 2 carburetor mounts per head and larger valves. The turbo heads often look like other heads but they have several
differences (no provision for carb. choke thermostats, right head has drain tube into valve area, both heads are tapped fine threads and approximately 1/2”
deep for the head heat sender). See also head number chart.
Reprinted with permission from the San Diego Corvair Club. Furnished by Jerry Becker.
Before ordering head gaskets, rings, etc., you may want to double check these sizes – as engines do get switched!
Year
Displacement
Cubic Inches
* Head Gasket
BORE – APPROX.
Cylinder Bore
* Piston Ring Groove Widths
COMPRESSION & OIL
Piston Numbers
Cast Inside
DISTANCE TOP OF WRIST
PIN TO TOP OF PISTON
1960 14 0 3 3/4 (3.740) 3.375 5/64”, 3/16” 6255631 (3 3/8)
1961-63 145 3 3/4 (3.740) 3.437 5/64”, 3/16 3823140 (3 7/16)
1964 16 4 3 3/4 (3.740) 3.437 1/16”, 1/8” 3819699 (3 7/16)
1965-69 (exc.
domed)
164 3 13/16 (3.800) 3.437 1/16”, 1/8” 3819699 (3 7/16)
1966-69 Domed 164 3 13/16 (3.800) 3.437 1/16”, 1/8” 388 5113 (3 7/16)
1
3
/
8
1
3
/
16
60-63: 80, 84
62-63: 150
61-63: 102, 98 64: 150
65-66: 180
64-67: 95 64-67: 110 65-66: 140 68-69: SMOG
HEAD NUMBERS
We have found that the engine codes by the oil filter are often inaccurate and do NOT take into
consideration that heads may have been changed. We suggest you go by the head numbers. This
should be a 7 digit number within an inch of the valve cover gasket area. This list is NOT complete! See picture bottom of next page.
Year Horsepower Head Numbers
1964 110 3819876, 3856631, 3856632, 3886257
1964 TURBO 150 3819904, 3856636, 3856638, 3886258,
3886259, 3817245, 38 27435, 3856637
1965-67 (no smog) 95 3856 74 3, 3883862, 3878569
1965-67 (no smog) 110 3856759, 3878561, 3878562, 3878566,
3883858, 3883863
1965-66 (no smog) 140 3856727, 3856728, 3878565, 3878570,
3883861, 3883864, 3883820
1965-66 TURBO 180 3856756, 3856762, 3878564, 3878568,
3883860, 3883865, 3883866
1966-69 (smog) 95 3880707, 3880708
1966-69 (smog) 14 0 3856728, 3885165, 3878570
These numbers are found on the top of the block near the gen./alternator plate (near oil
pressure sender). These are some of the common numbers. Please note that GM was not
always consistent in their use of these numbers and many times heads have been changed and basically changed the type of engine. Chevy did NOT always
refer to the horsepower rating of an engine so in various references in the shop manuals, etc., you may find the following: if they make no mention, the engine is
the low horsepower for that year (80, 84, 95). High performance was the next option engine (98, 102, 110). Special high performance always was 140, or Turbo,
(either 150 or 180). The most complete and accurate listings are in the “Junkyard Primer” and “CORSA Technical Guide”. XXX = replacement case
ENGINE NUMBERS: Suffix – VIN #’s
1960-63 HP Suffix
Manual 80 Y, YC, YH
60 Manual 95 YA,YB
61 Manual 80 YF
Manual 98-102 YJ, YN, YD
61-62 Manual 98 -102 YQ
Manual, FC (Van) 80 V
Manual, A/C 80 YL
Manual, A/C 98-102 YM
Turbocharged YR
PG 80-84 ZB, ZH, ZL, Z
PG 98-102 ZE, ZF, ZK
62-63 FC (Van)
Manual
80 VA
PG, FC (Van) 80 W
62-63 FC PG 80 WA
PG, A/C 80-84 ZD, ZJ
PG, A/C 98 -102 ZG
1964 HP Suffix
Manual 95 YC
Manual 110 YN
Manual, FC (Van) 95 V
64 FC Manual 95 VA
64 FC Manual 110 VB
Manual, A/C 95 YL
Manual, A/C 110 YM
Turbocharged YR
PG 95 Z, ZH
PG 110 ZF
64 FC (Van) PG 95 WA
PG, FC (Van) 95 W
64 FC PG 110 WB
PG, A/C 95 ZD
PG, A/C 110 ZG
1965-68 HP Suffix
Manual 95 RA
Manual 110 RD
Manual 140 RM
Manual (Corsa) 140 RB, RR
Manual, A/C 95 RE
Manual, A/C 110 RF
66 A/C Manual 14 0 RZ
Turbocharged RL
PG 95 RG
PG 110 RH, RX
PG 140 RN
PG, A/C 95 RJ
PG, A/C 110 RK
PG, A/C 140 RY
65 FC (Van) Manual 110 RU
65 FC (Van) PG 110 RX
Smog, Manual 95 RS
67 Smog, Manual 95 QM
1965-68 HP Suffix
Smog, Manual 110 RU
67 Smog, Manual 110 QS
Smog, Manual 14 0 RY
66 Smog, Manual 140 RQ
66 Smog, Manual (Corsa) 140 RT
Smog, PG 95 RV
Smog, PG 110 RW
66 Smog, PG 140 RX
67 Smog, PG 95 QO
67 Smog, PG 110 QP
66 Smog 14 0 QQ, QR
1969 HP Suffix
Smog, Manual 95 AC
Smog, Manual 110 AD
Smog, Manual 14 0 AG
Smog, PG 95 AE
Smog, PG 110 AF
Smog, PG 140 AH
388Year Horsepower Head Numbers1960 80 3789426, 6256711, 6256721, 62578381961 80 3786588, 3786589, 3787841, 37887381961 98 3788739, 3795960, 3796023, 37959601962-63 80-84 3813512, 3813513, 3820859, 3886251, 3840578, 3886241, 3886240, 3886250, 3817566, 3817568, 3820857, 3820859, 38862461962-63 102 3813511, 3813516, 38862471961-63 VANS 80 3817566, 3817568, 3886251, 3786588, 37865891962-63 TURBO 150 3817245, 3817286, 3817287, 3886248, 3886249, 37944121964 95 3839886, 3839887, 3856626, 3886255WHAT YEAR ENGINE? HEADS(3.740 & 3.800 = top outside diameter of cylinder) These sketches of the combustion chambers will help you determine which engine you have. All compression was controlled by the cylin-der head not piston design (exc. for domed pistons in some smog engines). Pay special attention to the area around the spark plug hole. The 140 can easily be determined by the 2 carburetor mounts per head and larger valves. The turbo heads often look like other heads but they have several differences (no provision for carb. choke thermostats, right head has drain tube into valve area, both heads are tapped fine threads and approximately 1/2" deep for the head heat sender). See also head number chart. Reprinted with permission from the San Diego Corvair Club. Furnished by Jerry Becker. Before ordering head gaskets, rings, etc., you may want to double check these sizes - as engines do get switched!YearDisplacement Cubic Inches* Head Gasket BORE - APPROX.Cylinder Bore* Piston Ring Groove Widths COMPRESSION & OILPiston Numbers Cast InsideDISTANCE TOP OF WRIST PIN TO TOP OF PISTON1960 14 0 3 3/4 (3.740) 3.375 5/64", 3/16" 6255631 (3 3/8)1961-63 145 3 3/4 (3.740) 3.437 5/64", 3/16" 3823140 (3 7/16)1964 16 4 3 3/4 (3.740) 3.437 1/16", 1/8" 3819699 (3 7/16)1965-69 (exc. domed)164 3 13/16 (3.800) 3.437 1/16", 1/8" 3819699 (3 7/16)1966-69 Domed 164 3 13/16 (3.800) 3.437 1/16", 1/8" 388 5113 (3 7/16)1 3/81 3/1660-63: 80, 8462-63: 15061-63: 102, 98 64: 15065-66: 18064-67: 95 64-67: 110 65-66: 140 68-69: SMOGHEAD NUMBERSWe have found that the engine codes by the oil filter are often inaccurate and do NOT take into consideration that heads may have been changed. We suggest you go by the head numbers. This should be a 7 digit number within an inch of the valve cover gasket area. This list is NOT complete! See picture bottom of next page. Year Horsepower Head Numbers1964 110 3819876, 3856631, 3856632, 38862571964 TURBO 150 3819904, 3856636, 3856638, 3886258, 3886259, 3817245, 38 27435, 38566371965-67 (no smog) 95 3856 74 3, 3883862, 38785691965-67 (no smog) 110 3856759, 3878561, 3878562, 3878566, 3883858, 38838631965-66 (no smog) 140 3856727, 3856728, 3878565, 3878570, 3883861, 3883864, 38838201965-66 TURBO 180 3856756, 3856762, 3878564, 3878568, 3883860, 3883865, 38838661966-69 (smog) 95 3880707, 38807081966-69 (smog) 14 0 3856728, 3885165, 3878570These numbers are found on the top of the block near the gen./alternator plate (near oil pressure sender). These are some of the common numbers. Please note that GM was not always consistent in their use of these numbers and many times heads have been changed and basically changed the type of engine. Chevy did NOT always refer to the horsepower rating of an engine so in various references in the shop manuals, etc., you may find the following: if they make no mention, the engine is the low horsepower for that year (80, 84, 95). High performance was the next option engine (98, 102, 110). Special high performance always was 140, or Turbo, (either 150 or 180). The most complete and accurate listings are in the "Junkyard Primer" and "CORSA Technical Guide". XXX = replacement caseENGINE NUMBERS: Suffix - VIN #'s1960-63 HP SuffixManual 80 Y, YC, YH60 Manual 95 YA,YB61 Manual 80 YFManual 98-102 YJ, YN, YD61-62 Manual 98 -102 YQManual, FC (Van) 80 VManual, A/C 80 YLManual, A/C 98-102 YMTurbocharged YRPG 80-84 ZB, ZH, ZL, ZPG 98-102 ZE, ZF, ZK62-63 FC (Van) Manual80 VAPG, FC (Van) 80 W62-63 FC PG 80 WAPG, A/C 80-84 ZD, ZJPG, A/C 98 -102 ZG1964 HP SuffixManual 95 YCManual 110 YNManual, FC (Van) 95 V64 FC Manual 95 VA64 FC Manual 110 VBManual, A/C 95 YLManual, A/C 110 YMTurbocharged YRPG 95 Z, ZHPG 110 ZF64 FC (Van) PG 95 WAPG, FC (Van) 95 W64 FC PG 110 WBPG, A/C 95 ZDPG, A/C 110 ZG1965-68 HP SuffixManual 95 RAManual 110 RDManual 140 RMManual (Corsa) 140 RB, RRManual, A/C 95 REManual, A/C 110 RF66 A/C Manual 14 0 RZTurbocharged RLPG 95 RGPG 110 RH, RXPG 140 RNPG, A/C 95 RJPG, A/C 110 RKPG, A/C 140 RY65 FC (Van) Manual 110 RU65 FC (Van) PG 110 RXSmog, Manual 95 RS67 Smog, Manual 95 QM1965-68 HP SuffixSmog, Manual 110 RU67 Smog, Manual 110 QSSmog, Manual 14 0 RY66 Smog, Manual 140 RQ66 Smog, Manual (Corsa) 140 RTSmog, PG 95 RVSmog, PG 110 RW66 Smog, PG 140 RX67 Smog, PG 95 QO67 Smog, PG 110 QP66 Smog 14 0 QQ, QR1969 HP SuffixSmog, Manual 95 ACSmog, Manual 110 ADSmog, Manual 14 0 AGSmog, PG 95 AESmog, PG 110 AFSmog, PG 140 AH
Next
CLARKS- MORE THAN PARTS.

Copyright © 1978, 2019 Clark's Corvair Parts, Inc., "Clark's Corvair Parts" and the "Corvair Map" are registered service marks of Clark's Corvair Parts, Inc.
P.O.Box #NET 400 Mohawk Trail Shelburne Falls, MA 01370 USA All rights reserved.
Main Office Phone: 413.625.9776 Fax: 413.625.8498