Found this crack where the 'black box' is suppose to be at on my GSR block. It doesnt look too good. Would I be able to still use this block? I will be running a oil catch can setup so that hole will be plugged up but I dont think it would seal well if I were to just get a plug. Is there any alternative way besides getting a new block?

 

that doesn't look good at all, how in the hell did you manage to cause that? dis-assembly has to be the culprit, sledge hammers and GSR blocks dont work together too well lol. Looks like trash to me, just my .02!

 

Might not look super pretty but you can probably freeze plug it and call it a day. It's a non-structural chunk of block.

 

yeah, i wouldnt be to upset. get it welded up and plug it, just dont use anything thats pres fit, get something with o-rings or use a cam plug, they fit in there pretty well and use some rtv.
if your getting it machined, the machinest will be able to tell if all is good or if the block is crap, typically.

 

so you can delete the black box and reroute the lines? and freeze plug the hole?

 

plug it and use jb weld

 

yes. you will be fine. id do the freeze plug in till it just passes the crack and then put a coat of jb around it just for safe keeping. oil doesnt flow all around there its just the vent correct?

 

Have the crack stop drilled and then a bead welded. Grind down the excess and your good to go. Its looks as though its a non pressurized part of the block...
Or just go buy another bare block for $50-$100. Good luck!

 

have it welded but take it to a automotive related machine shop. people who havent dealt with cars wont weld anything thats ever been near oil.

 

$50-100 for a gsr block? show me!

 

Ive bought a few bare LS blocks(blocks and caps) in the past for $50, I see B16 blocks go for ~$100 so i figured a bare gsr block should fetch about the same...
I guess it depends on you location too...

 

yea i bought a complete b20 bottom end with rotating assembly for 50 bucks. you just have to stay away from honda-tech. people jack prices here because other people will pay it.

 

word, every 16yr old thinks that what they bought there parts for is a reasonable price to ask for there parts after there used. that or its just the douchebags on the west coast that think things are worth more than they really are....

 

should i freeze plug it or plug it up with something that has o-rings?

 

I would use something with O-rings and some sealant but if you get the freeze plug in past the crack I don't see any reason why it wouldn't work. It's probably a question of personal preference. Just go with whatever you are more familiar with or have better access to.

 

alright so i finally got my block plug and the jbweld... any recommendation on how if I should do this? Should I...

JB weld the inside crack, plug it, and JB weld the outside crack?
or
Plug it up and JB weld just the outside crack?

I'm afraid if I JB weld the inside that I won't be able to the plug later on and what not.. Anyways what does HT suggest?

 

i would not use a "freeze plug" first of all those are held in by pressure and could further crack your block i would take and make a small steel circle slightly bigger than the hole and jb weld the whole thing but this again might not work it may keep cracking drilling at the end of each crack then jb welding it might be the best solution but it doesnt look like it cracked in the most perfect of spots to drill also if you do this you want to make sure you leave none of your drillings behind

the safest thing i think would be to take this to a machine shop

(freeze plug is not intended for breaking when a block freezes it is merely a means to get sand out of a casting and then they use a block plug to block it off)