I purchased a Cometic 85mm Gasket made specifically for a B18 or B20 block with a VTEC head. I decided to test fit the gasket and can see some alignment issues on the head but none on the block. Please take a look at the pics and tell me if the mis-alignment on the head is "normal" for this type of build.

Cometic Label:


Left side of the block which looks correct:


Right side of the block whcih also looks good:


Top of block:


Cylinder Head:





Aftermarket Dowels:


Thanks!

 

i had the same issue with my g23 motor went to get the top of the block all welded up and matched to the h22a hg its alot of work but has to be done before sleeving can commence

what i usually do is when hg matching problems occur i put the block on my bridgeport and with a black marker mark the areas that need openings done to them i use a ball nose of approx diameter end mill and plunge it in the area very carefully but make sure youre not near any crsh zones this process can take some time

i hope this helped a little and if you have a bridgeport for access try to fix it up

cheers

 

u should be ok...not the first time i see a gasket that fits like that...make sure to use some shelac or copper spray

 

copper spay is supposed to help seal. it won't help align the gasket with the coolant passages in the head.

Lubo_25 gave you pretty good advice.

 

Well, you have two choices. The GE LS/VETC gasket that matches the head perfectally and not the block, or the Cometic that matches the block and not the head. Pick one

 

The thing that gets me is how your block guard and head gasket act in concert to block water from flowing to the head especially on #4.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">The thing that gets me is how your block guard and head gasket act in concert to block water from flowing to the head especially on #4.</TD></TR></TABLE>

Can you please clarify what you are saying?

 

in the pics if u look closely u can see ur block gaurd and it looks like its blocking the passage with the headgasket...unless ur motors sleeved and thats what it is???...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fast4imports &raquo;</TD></TR><TR><TD CLASS="quote">in the pics if u look closely u can see ur block gaurd and it looks like its blocking the passage with the headgasket...unless ur motors sleeved and thats what it is???...</TD></TR></TABLE>

This is a GE sleeved block. Here is my build:

B18b block GE sleeved and bored to 84.5mm
Endyn crank girdle with AEBS main studs
Balanced, chamfered, polished crank
ATI crank damper
Eagle rods with ARP bolts
CP 12.5:1 84.5mm pistons
Alaniz Competition VTEC head
Skunk2 Pro Springs, Retainers & Cam Gears
Type R valves
AEBS 68mm throttle
Edelbrock Performer X intake port matched to throttle
BPI CAI stack on 3" piping
SMSP B19 Header
2.5" custom mandrel piping into Magnaflow resonator and Vibrant muffler
RC 370cc injectors
Hondata s300
Skunk2 Pro 2's
Del Sol hydro tranny with 4.78 final & ITR LSD
Competition Stage 4 Strip Series Clutch Kit
Meziere Electric Water Pump
T1 Crankcase Catch Can

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF &raquo;</TD></TR><TR><TD CLASS="quote">Well, you have two choices. The GE LS/VETC gasket that matches the head perfectally and not the block, or the Cometic that matches the block and not the head. Pick one</TD></TR></TABLE>
X2
as to which gasket to use, you are going to get alot of different answers. People like both the LS & Vtec gasket. In my opinion I'd use a Vtec gasket. I've run them on my blocks and have had no leaks.