So i dont think this was supose to happen lol I have a b20 bottom end, brian crower rods and je forged 9:1 compression pistons...tell me whats wrong lol. i dont know if the rods are the wrong sizes or if its the pistons...yes the b20 block is darton sleeved i could get a good reading with a tape measure.

 

Make sure you have the right crank, the right rods, and the right pistons.....one of those 3 things is wrong...or they took a ton of material off that block at the machine shop

 

like posted above the crank/rod combo is off more then likely. did you order the parts or did you have a shop do it for you?

 

x2

 

If the crank is stock B20 in a B20 block then your rods are too long or the piston pin height is wrong. Either way that sucks dude because now you gotta find out who screwed up and get them to make it right for you (unless you want 20:1 compression:-)

 

Do you have like GSR rods on the B20 crank or something?

 

Thats what i was thinking is that i have gsr rods. I did get a really super good deal on the rods...but the bastard told me they were for a ls. probly didnt know the difference between ls and gsr lol

Im going to take a rods out and match them up to the OEM b20 rod and see if i can eyeball a difference. I think the gsr stroke is 87 and a b20 is 89mm...so thats my guess that the rods are the wrong length.

 

GSR stroke 87.2mm but you were close.
See if there's any kind of identifying stamps on the rods.

 

B18C1
VTEC (Dual Stage Intake Manifold)
Found in :
1994-2001 Acura Integra GS-R (DC2)
Power : 170 hp (127 kW) @ 7100 rpm & 128 ft·lbf (173 N·m) @ 6200 rpm
Redline : 9000 rpm (limiter @ 8500 rpm)
VTEC Switchover : 4400 rpm
Intake Manifold Switchover : 5750 rpm
Displacement : 1797 cc
Compression : 10:1
Bore : 81
Stroke : 87.2 mm
Rod Length : 137.9 mm
Rod/Stroke : 1.58
Transmission: s80
VTEC Engagement: 5800 Rpm

B18B1
NON-VTEC
Found in:
1994-2001 Acura Integra "RS/LS/GS/SE" (DC4/DB7)
Displacement: 1,834 cc (111.9 cu in)
Compression: 9.2:1
Bore: 81 mm (3.2 in)
Stroke: 89 mm (3.5 in)
Rod Length:5.394in
Rod/Stroke Ratio: 1.54
Power: 142 hp (106 kW) @ 6300 rpm & 127 ft·lbf (172 N·m) @ 5200 rpm
Redline: 6800 rpm
Transmission: Y80/S80

B20B / B20Z
1999 - 2000 specs
NON-VTEC
Found in: USDM CRV as a B20Z, JDM Honda CR-V and Honda Orthia as a B20B
Displacement: 1,973 cc (120.4 cu in)
Power: 146 hp (109 kW)) @ 5400 rpm
Torque: 133 ft·lbf (180 N·m) @ 4300 rpm
Rod length: 137 mm (5.394 in)
Compression: 9.6:1
Bore: 84 mm (3.3 in)
Stroke: 89 mm (3.5 in)
Redline: 6300 rpm

It looks like he ****ed u in the *******. Because GSR Rods are .9mm longer than LS/B20 Rods. Which is just enough to give you a ****ed up Piston to Deck Height.