View Full Version : KS 2.0L B engine build

06-10-2009, 04:26 PM
so i got to start on my 2.0L build today! it's going to be september before it finds itself sitting between frame-rails but everything has a beginning.

This is a P72 block, darton sleeves, PR4 crankshaft, eagle rods, and supertech 84mm pistons.

it's going to have a P30 head on it with P72 camshafts unless i find some P73 camshafts. down the road it's getting a P72 head with some work done and some kelford camshafts, but that's down the road.


well...i paid more attention to my pictures than to the scale. the forgings are actually within .1g of each other. the pins are NOT, and the rings aren't. rings are easy. you can swap those around to balance them out, pins can be shaved, but WOW they are off! i have half a mind to order up two more sets of pistons with rings and pins to be able to balance them out and sell them as balanced sets. end state: whole piston assemblies that are within .1g of each other.

the pistons are 84mm bore and 5.5cc dome, so i'm going to run a rather thick head gasket to bring the compression down around 11.25:1. that's about as high as i'd like to go with OEM camshafts. this also allows me to run a thinner head gasket in the future and bring the compression up when i have aftermarket camshafts that create a little less dynamic compression.

ANYWAY. that's the start of my build 2.0L B build.

06-10-2009, 08:12 PM
had some time. did some swapping around. here's what i came up with:


there's one wrist-pin that's a bit lighter than the rest. i used the heaviest of the rings to compensate, but this is all going to end up getting re-balanced when i file the rings to the bore...hmmm.

either way. that's good enough for a street engine. it's honestly good enough for a race engine, but i build those to .1g. this one probably won't see anything north of 8500 RPMs. if this was a track engine, or a customer engine i'd call supertech and exchange wrist pins for ones that are closer in weight. i might give them a call ANYWAY.

06-10-2009, 09:03 PM
crazy build bro. how long have you been building engines for?

06-10-2009, 11:28 PM
Looks great so far! :thumbs up GL with build!

06-11-2009, 12:31 AM
looking good man keep us updated on the project brah

06-11-2009, 12:36 AM
You should sell your block and buy one from lighting motorsports they have b18b sleevd for $1000 i got one in 85mm ive put up to 45 psi on it counless times.You will love the stroke

06-11-2009, 02:06 AM
i haven't been building engines for terribly long, but this is far from my first build. i've found that the key ingredient is diligence. don't overlook the small things and you won't be disappointed. the difference in the FEEL of an engine between a 1g balanced rotating/reciprocating assembly and a 0.1g balanced assembly is remarkable. once i learned diligence, i found it could be applied to anything, and when applied to a car in whole it creates a well-sorted, well balanced car, and it could be applied CHEAPLY.

i appreciate the kind words. sometimes it takes some reflection to keep you going when things get frustrating.

i'm okay with the block i have. i'm rather friendly with my machine shop, and can check their work along the way. the block was also free :) and it's a GS-R block, so it's girdled and setup for VTEC.

06-11-2009, 02:08 AM
sounds like you know what your doing

good luck and keep us updated!

seems like a sick build :thumbup:

09-24-2009, 08:58 AM
UPDATE! (took me long enough)

Here's my head fresh back from machining. I had Supertech guides installed and the seats cut for +.5mm oversized intake valves, on-size exhaust valves.
http://i170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/th_2009-09-17150933.jpg (http://s170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/?action=view&current=2009-09-17150933.jpg)

I ended up having Darton do MID sleeves for me. I just liked the idea of a full wet sleeve more than thin dry sleeves.
http://i170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/th_2009-09-22164233.jpg (http://s170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/?action=view&current=2009-09-22164233.jpg)
http://i170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/th_2009-09-22164459.jpg (http://s170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/?action=view&current=2009-09-22164459.jpg)

Main caps on, getting ready to check bearing clearances. I ended up with .0025in bearing clearances, which is a little on the loose side, but not bad considering this isn't going to be a race car. I'm running ACL bearings if anyone cares.
http://i170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/th_2009-09-22164623.jpg (http://s170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/?action=view&current=2009-09-22164623.jpg)

My crankshaft was a junkyard pull that I did with a friend a few years back. It's definitely got some miles on it, but it's still in good shape!
http://i170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/th_2009-09-22203818.jpg (http://s170.photobucket.com/albums/u279/killer_siller/b20vtecbuild/?action=view&current=2009-09-22203818.jpg)

I've got the bottom end buttoned up now, with my 84mm Supertech pistons in on Eagle rods.

09-24-2009, 03:41 PM
looking good!

09-24-2009, 04:37 PM
NOICEE!! :thumbup: Subscribed!

09-24-2009, 04:54 PM
nice. looks similar to what i want to do. except mine will be built for boost. but i am also going with a gsr block and ls crank. wish i could afford sleeves right now but il just have to wait to crank the boost up. looks good!

09-24-2009, 05:37 PM
All said and done, having Darton East do the sleeve job was about $1800 from the time I put it in the box until I took it out. It's well worth it.

09-24-2009, 07:17 PM
Thank you to whatever mod moved the thread. I hadn't noticed the "build" section until after I'd posted. I appreciate it!