so, how much does the compression jump with the EB2 head?

By Adrian (Evocivic) (203.42.97.141) on Thursday, February 10, 2005 - 03:53 pm:

EB3 head is basically the same as the EN1. Stick an EB1 or 2 head on an EN bottom end and your compression jumps a lot. In theory it's a good combination as the ports are small, keeping the gas speed up and the valves are less shrouded. Also compression = power. But you will need to run it on good fuel or it'll ping itself to bits.

With an EB3 head on an EN bottom end it's basically just an EN with the torque rod mount off the end of the head.

By go4mo (213.89.251.33) on Thursday, February 10, 2005 - 09:49 am:

hey don ...

the eb head vs. the en head - internally they are basically the same, are they not? ---

(also, the EN head had the option for a mechanical tach from the side of the cam .. )

now, i know i've read a bunch on which head to use when rebuilding a stroker - some prefer eb2 - some prefer eb3 - what are your thoughts on this --?

By Don (63.135.203.61) on Thursday, February 10, 2005 - 06:40 am:

Only if you bolt an eb head onto the EN so you dont have mount problems

By Rock_Prawn (Rock_Prawn) (24.64.223.203) on Wednesday, February 09, 2005 - 02:51 pm:

I was under the impression that the Canadian EN was basically a 1200 stroker, elliminating the need to make one from the 1200?


We have a winner

By Bryan (66.245.98.243) on Friday, February 04, 2005 - 05:35 am:

I pulled an EJ out to get the crank out and the motor mounts are not anything like the EB mounts. I am not sure if they could be adapted or not, I really did not study it that closely. I don't think it is a bolt-in however.

By Jamie Lay (Boyracer) (24.125.12.123) on Thursday, February 03, 2005 - 07:45 pm:

i'll check it out! hopefully i can sneak out to the yard this weekend..John, im in Richmond, south of the James...

jamie

By Jonathan (68.193.6.173) on Thursday, February 03, 2005 - 06:54 pm:

Oh yeah, one other thing to check is to make sure that it is a 5-speed, some 2nd gens came with a 4-speed. The code on the trans should be GJ87, if I recall correctly.

The later (82-83) 5-speeds had a much taller final drive, which would make them great for crusing on the highway, but not as good around town.

By John S. (68.92.247.134) on Thursday, February 03, 2005 - 06:48 pm:

I just read the first part of this post, and I would definitely grab that tranny too , because if it is the origional one from the '81 car it is one of the highly sought after close ratio gearboxes with the super low 4:93 to 1 final drive. Perfect for a hot 1stGen car. That gearbox was only available in the '80-81 1300 cars. Where in Virginia are you?

By Jamie Lay (Boyracer) (24.125.12.123) on Thursday, February 03, 2005 - 06:34 pm:

jonathan, you are right, a 5 speed would be nice, especially since the majority of my daily commute is highway...
john S...as a side note, i already run an electric pump, but (as im sure you figured) economy is not really my goal...thanks for all the info, i will try to grab the crank, rods, flywheel, front pulley, and maybe even the 5 speed trans..you guys rock thanks again!
jamie

By John S. (68.92.247.134) on Thursday, February 03, 2005 - 06:04 pm:

OK if it IS an EJ block, the EB-EN series heads will NOT bolt on to it. The crank and rod assemblies will fit into a EB-EN block. There are two different heads for the EJ block, early '80-81 2-port exhaust, and the later '82-83 4-port exhaust head. Actually if what you want is good economy the later 1300 four port wouldn't be a bad choice, and you won't be fighting with anyone over parts. It is a CVCC head however, and you must add an electric fuel pump as it does not have a mechanical one like the EB-EN series did. You will never be able to build big power with it , so if THAT is what you want you'd best be patient untill you find an EB block to build. I'd still grab the crank and rods though, just don't drag the rest of the motor home. (Also get the flywheel and front pulley that matches the crank too).
Another thing about the CVCC motors which has been mentioned over and over again is the extremely sophisticated carburator which IS a headache in the longrun. If it were me I'd stay with the EB series even if you plan to stay mostly stock as it is a lot easier to keep one of them running.

By Jonathan (68.193.6.173) on Thursday, February 03, 2005 - 05:53 pm:

Jamie, the US version has a CVCC style head, while the Canadian version is a non-CVCC head (someone correct me if I'm wrong). The CVCC heads are harder to get performance from, while the Canadian heads are better flowing with bigger valves. The motor in the junkyard might not be in any better condition than yours, so there may be a rebuild in your future no matter what. If you are going to rebuild, I'd stick with the 1200 block so you don't have to modify a motor mount.

What kind of transmission is in that '81? If it's a 5-speed you might want to swap it for what you're using now. You'd need the flywheel off the 1300, but otherwise it's a bolt-in.

By Jamie Lay (Boyracer) (24.125.12.123) on Thursday, February 03, 2005 - 04:52 pm:

well, the engine is still at the junk yard!! my borhter in law (who sold me the 1200 i have) saw it there a few days ago, sine it's virginia, usa, i would assume its an EJ..also assuming the only diff between EN and EJ is canadian or american...
so on my end, its buy a new engine and rebuild it or buy the parts and rebuild my 1200...
thanks for all the feedback guys..also i already run a weber..
jamie

By Bryan (66.245.94.105) on Thursday, February 03, 2005 - 01:20 pm:

It really depends on which 1300 engine he has EJ or EN. I was assuming that he was talking about an american EJ. I might be wrong.

So which one do you have????

By go4mo (213.89.251.33) on Thursday, February 03, 2005 - 06:27 am:

your right kurt --
why re-invent the wheel - it's a lot easier to modify one measly mount than re-do a new motor ! --
go with the EN motor, slap on some dellortos or webers, modify the cam, grab some headers and you've got yourself enough juice to play with ! --

my 2 cents -

By Kurt (205.250.75.226) on Wednesday, February 02, 2005 - 09:34 pm:

I was under the impression that the Canadian EN was basically a 1200 stroker, elliminating the need to make one from the 1200?

By Jamie Lay (Boyracer) (24.125.12.123) on Wednesday, February 02, 2005 - 08:04 pm:

Thats what i was thinkin, jonathan...i still have the 98 civic motor too, but not the time/$ for such an endeavor, ya know? also, that guy with the parked cvcc is still evading me, maybe he stole it or something? what a lame brain..

jamie

By Jonathan (68.193.6.173) on Wednesday, February 02, 2005 - 07:46 pm:

I'd say 1300 crank and rods in the 1200. You can still use all your 1200 performance parts, and it's a guaranteed straight bolt in. No modifying any mounts.

By Jamie Lay (Boyracer) (24.125.12.123) on Wednesday, February 02, 2005 - 07:30 pm:

well, now my question is, which would be the best swap (as far as power is concerned) - 1300 complete or 1300 crank and rods in the 1200?

jamie

By Jamie Lay (Boyracer) (24.125.12.123) on Wednesday, February 02, 2005 - 03:51 am:

awesome, thanks for the info!

jamie

By go4mo (213.89.251.33) on Wednesday, February 02, 2005 - 12:46 am:

hey jamie --

it's really simple ...

the only mount you need to modify is the one that comes from the firewall to the head -- it needs to be a different length --

that's all - just bolt in ---

NOTE --
take the coil from the new motor as well - the old 1200 coil is insufficient for the new setup ..

.. and, if you are considering keeping the 4 speed tranny (why?) .. you'll need to swap flywheels --
.. however -- ignore this if you are doing both motor/tranny swap ...

.. hope it goes well !
cheers
mo

By Bryan (66.32.244.38) on Monday, January 31, 2005 - 12:02 pm:

I'm sure you could make it fit, but not what is supposed to go in there. The motor mounts and such are totally different. You could use the crank and rods out of it in a 1200 block.

By Jamie Lay (Boyracer) (24.125.12.123) on Monday, January 31, 2005 - 10:44 am:

"Your search for 1300 1200 swap matched 1295 pages."
sifting through it all.. in the meantime if anyone has droppe done in, i'd appreciate any info..

By Vccivic (24.85.232.159) on Monday, January 31, 2005 - 09:43 am:

Hey Jamie, I would recommend the search feature on this site. I'm sure I have read about this a few times....There are usually links and photo's etc.

Don't take my word, but from what I have read/heard any same generation engine and tranny are fairly compatible, bolt on...bolt off. My current 75 civic has a 4 speed and a 1.3 litre, I bought it that way though....

By Jamie Lay (Boyracer) (24.125.12.123) on Monday, January 31, 2005 - 06:43 am:

hey guys, would a 1300 from an 81 civic bolt right into my 79 1200? would i need the tranny too? (i have a 4 speed of course)

thanks
jamie