maroonls1z

I am trying to pick a head gasket for my 4.155 bore ls7. I am having trouble locating one. I saw clevite makes a 4.165 bore gasket but i cant find detail on compressed thickness. Any suggestions?

litle88

iTrader: (20)

Try TSP's website they carry GM and cometic which offer a thinner version.

HSV-GTS-300

19170419
LSX 4.200 Bore MLS Head Gasket Kit
• Multi-layer steel gaskets for naturally aspirated and forced
induction applications
• .051" thick
• Includes 1 LH and 1 RH gasket
• For standard LS and LSX 6-bolt pattern blocks and heads
• For bores up to 4.200"

19170420
LSX 4.250 Bore MLS Head Gasket Kit
• Multi-layer steel gaskets for naturally aspirated applications
• .051" thick
• Includes 1 LH and 1 RH gasket
• For standard LS and LSX 6-bolt pattern blocks and heads
• For bores up to 4.250"

maroonls1z

so it was recommended that I run the factory ls7 head gasket for this application by a very repitable source... just feel odd using a 4.150 gasket for a 4.155 bore. Any one ever done anything like this before?

litle88

iTrader: (20)

Lol oh wow.

oakley6575

iTrader: (3)

You should probably take your car to a reputable shop and have them do the work

maroonls1z

this is a recommendation from whom some would consider "the best". Was just currious if anyone had ran a gasket that was 5/1000 smaller than their piston bore size before