88 EF Hatch

Why do u only mill/resurface your head when u blow headgasket and not block? Reason I'm asking is my motor over heated due to blown head gasket and head warped pretty bad, so I'm getting new head but do I need to resurface block?

seanbev24

Check the block for flatness using a precision straight edge and feeler gauges. If it is out of spec, you need to get it decked.

88 EF Hatch

Do u know what specs are?

seanbev24

I don't know off the top of my head but it can't be more then like a couple thousandths. If you can't find it by searching and don't have a service manual, I'd just call honda and ask.

88 EF Hatch

Is the block most likely to warp after blowing headgasket? Most ppl usually just machine head...why don't they usually do block?

BigBlock22

after you get your head and block squared away from whatever machine shop(you might want to leave the decking to them), they will be the ones to recommend what head gasket is best for you. Cometic does custom head gaskets below the standard .030" which might be all you need after they remove material from your head or block in order to raise the compression.

92cxturbo

cuz they have no clue what they're doing

BigBlock22

[QUOTE=92cxturbo;39248371]cuz they have no clue what they're doing[/Qv

i agree.... most of the time if your head has been warped the block might be as well(so check both especially if the block is aluminum). one of the main reasons a lot of people dont zero deck certain blocks is probably because that particular block is made of iron. iron holds up better. even aluminum engines with iron bores should be checked up on

88 EF Hatch

94 B18b1 blocks are aluminum right?

kyden

correct

CerealKiller

Both the block and the head need to be checked for warpness. If both are fine, your problem is probably your head gasket.

88 EF Hatch

Head was warped like crab, deck side was warped bad that when I used staright edge is see sawed