By Sash (Sash) (216.161.84.176) on Saturday, July 28, 2001 - 08:24 pm:

What does these type of numbers mean that you guys constently refer to , including the motor numbers?

By Zippy (Zippy) (205.188.200.32) on Saturday, July 28, 2001 - 09:32 pm:

I'm not certain which years are which but I think the EB1 is for a '73, EB2 is '74-'77, and EB3 is '78-'79. EB1 is a bit smaller displacement and EB3 has larger, more desireable valves. Other codes are for later motors EJ is for 2nd gen civic EK is Accord?

Roger

By Sash (Sash) (216.161.84.202) on Sunday, July 29, 2001 - 08:58 pm:

THANKS!!!!!

By jim_mac (198.142.108.13) on Monday, July 30, 2001 - 01:53 am:

My EB1 is a 74 model

By tedshred (63.224.195.169) on Monday, July 30, 2001 - 08:42 am:

My November 1974 1200 is powered by the EB2. My wiring harness is distinctly a 75.

By Sash (Sash) (207.225.87.182) on Monday, July 30, 2001 - 10:49 am:

where on the block is this number located?

By Anonymous (24.67.176.212) on Monday, July 30, 2001 - 02:43 pm:

Intake side near starter

By Paul (146.171.254.62) on Tuesday, July 31, 2001 - 02:58 pm:

Apparently the EB3 had the black plasic ends on the bumper as well as the engine changes, from what I know it has larger stainless valves and a wider bore...shorter stroke? I think it has the same displacement as the EB2 so I am asuming that the EB3 can rev higher?

By Anonymous (208.197.200.251) on Tuesday, July 31, 2001 - 03:18 pm:

While on the topic of EB* heads,
can someone tell me what the casting numbers are for those heads?

By Adrian (Civicguru) (203.42.97.227) on Tuesday, July 31, 2001 - 04:29 pm:

EB1/2/3 all have 76mm stroke. EB1 has 70mm bore, EB2/3 have 72mm bore. The difference between EB2 and 3 bottom ends are the pistons (very slightly dished in EB2, domed in EB3). Rev capability of the bottom end is the same. Yes, EB3 heads have bigger valves (and ports; may or may not be desirable depending on your application), but not as far as I know stainless from the factory...

You guys in the states may have got EB2s slightly earlier than us in Oz, which I find a bit surprising. A lot of you guys say you have EB2s in your 74 models, but are they the original engines? Over here the years are:
EB1: 73 (very rare), 74, 75
EB2: 76, 77
EB3: 78, 79

The heads tend not to have a lot of casting numbers on them, you just have to know what to look for.

By Don (209.181.52.67) on Wednesday, August 01, 2001 - 06:37 am:

All USA 74's had eb2's to my knowlege. Maybe it was to carry all the extra weight the USA models have to tote.

By Anonymous (24.67.176.212) on Wednesday, August 01, 2001 - 07:14 am:

EB2 heads are marked S (exhaust side rear) EB3 heads are marked H

By Anonymous (64.12.102.181) on Saturday, August 25, 2001 - 05:01 pm:

Hmmmm,...........

This may be a really stupid question, so bear with me here, OK?

The sticker on the underside of my 79 Civic's hood just says: "Engine-EB"

Does the 3 mean carb size? (ie. 2bbl / 3bbl)???

By Anonymous (24.67.176.212) on Saturday, August 25, 2001 - 05:19 pm:

Nope.