newbee here,just bought a 48 bbk,any tips?

[speedfreek700]

hey all,i just bought a 48 big block kit. i was wondering what to expect out of it? what should i be aware of when installing it? what kind of work does the head require? are the rings file fit,if so whats the end gap?
any tricks i should do while its apart? comments and info would be great.

[vette66_00]

Rings should be the right size. They are indexed by the brass tit on the piston no need to file fit. Make sure you use lots of 2 cycle oil while installing them, the piston, and coat the cylinder walls also. Just make sure everything is clean and you should be ok. Clean clean clean and the clean again you do not want any debris in the piston area at all. Also make sure you put the EX on the piston toward the exhaust post if you didn't know what that meant (sorry just had a buddy take out a new 4 stroke alky enigne cause he thought he didnt need help and he had put the piston upside down. )

Your stock head will require you to have it machined out to fit the 48mm piston. Most machine shops will understand what you want. Take the piston and the head to the machine shop and show them.

like this:
viewtopic.php?f=2&t=14951

[martynkim]

The Head will require nothing. He sold you a head to match the bore.

[Brutal Stabbings]

i didnt think the kit came with the head. i just bought one today.

[martynkim]

It does not this was on Ebay and was a package deal.

[mustangwagz]

That your customer marty?

lol, i sold mine as well and told the person to join this forum to get the downlow.. lol

[martynkim]

Not my sale. My friend with the other one.

[speedfreek700]

q. are the base and head gaskets same size as stock? should i fool with exaust or intake porting?

[tospreeornottospree]

i used a die grinder/dremmel used the head gasket that came with it put bolts through the hole and marked the area needed to be removed then removed the thickness of the head gasket on the head for clearance maybe more may need to remove but after you assemble your engine test compression if compression is too high remove more! or if you can find someone to machine just give them the head and the new head gasket and let them have at it but mine runs great with the ghetto fab job i did! or just hunt down trafficjamz and see if he has any done up already!

[speedfreek700]

hey all, i got my bbk with no instructions. can you tell me which way is up for the piston ring's? should the little m or w ? be facing up or down instaled on the piston. thanks

[Trafficjamz]

I have a tip.

Gasket match the base gasket to the cylinder.
The gasket covers way too much of the boost port.

[Trafficjamz]

q. are the base and head gaskets same size as stock? should i fool with exaust or intake porting?

Head gasket is bigger for sure.
Exhaust porting is a good idea if you know what you are doing.
I raised mine 1mm

[speedfreek700]

thanks for your tips traffic jam. i need to clean up the ports from the way they came cause there is some very thin matierial left on the edges.

[Trafficjamz]

thanks for your tips traffic jam. i need to clean up the ports from the way they came cause there is some very thin matierial left on the edges.

Yeah, If there are rough edges ,smooth them out.