996 GT2 dead...
Registered User
Joined: Nov 2009
Posts: 1,021
From: Italy
Rep Power: 86
The rods are 993 era, the bottom end is basically a 962 same with oil pump, and the intake manifold and EPA air pump are very dated.
basically what makes this motor special is the heads and the tuning. every thing else is old!
One thing that you will find as you research about these motors is a full rebuild and a head gasket is not much different. the bulk of your labor is if you have to remove the cylidner liners because of the process it takes is where 40-60hrs of your labor is. once you have removed the pistons there is only bottom end bearings, oil pump and a few gaskets left. the cylinder liners are nikasil coated so you dont bore these motors. So if your liners are good on the sealing surface(head gasket) and your not doing a 3.8 or larger kit you just put in new rings and put it back together.
now if your liners are not in good condition on the sealing surface they have to be replaced not machined. this is where most people just go 3.8kit as the prices are not much different.
so the difference between head gasket and full rebuild is not much if the cylidner head is not touched.
basically what makes this motor special is the heads and the tuning. every thing else is old!
One thing that you will find as you research about these motors is a full rebuild and a head gasket is not much different. the bulk of your labor is if you have to remove the cylidner liners because of the process it takes is where 40-60hrs of your labor is. once you have removed the pistons there is only bottom end bearings, oil pump and a few gaskets left. the cylinder liners are nikasil coated so you dont bore these motors. So if your liners are good on the sealing surface(head gasket) and your not doing a 3.8 or larger kit you just put in new rings and put it back together.
now if your liners are not in good condition on the sealing surface they have to be replaced not machined. this is where most people just go 3.8kit as the prices are not much different.
so the difference between head gasket and full rebuild is not much if the cylidner head is not touched.
Registered User
Joined: Aug 2009
Posts: 2,496
From: Houston Tx
Rep Power: 187
this has been said by quite a few people "in the know"
some of the liners floating around are far from the quality youd expect a 40k motor to have.
nikasil is not a brand or manufacture of liners, it is an engine bore coating that i use on my off road race motors. and its also stock on any japanese late 2stroke motorcycle bore.
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