rob_sri Posted October 25, 2013 Share Posted October 25, 2013 (edited) I'm going to be buying another engine in the next week from parry on here for a na-t build.. Engine has 40k on from keron.. Head is off and cams out etc I want to take my time with it and make a good job of it.. What's best to replace or change for a na-t? Head has already had a very light skim.. I was thinking of doing the valve stem Seals and having the head pressure tested before fitting a TT HG and putting it back together..as I know this can be a weak point Will fit brand new, water pump & crank pulley, stat etc Is there anything else that would be recommended? Or would definitely change? Or anything that would be worthwhile getting done? Piston rings etc? I don't want to spend a fortune and I think it's one of those things where you could easily go overboard and start being silly replacing everything at great cost.. But I do want it to be reliable and hold good power 4-500 bhp reliably Any advice would be good Shopping list would be fantastic! Thanks Rob Edited October 25, 2013 by rob_sri (see edit history) Quote Link to comment Share on other sites More sharing options...
Rich.2211 Posted October 25, 2013 Share Posted October 25, 2013 I would definitely change the valve stem seals whilst the head is off mate, also check the valves aren't pitted etc. You could also consider changing the oil pump Quote Link to comment Share on other sites More sharing options...
Dazzi Posted October 25, 2013 Share Posted October 25, 2013 Oil pump, front and rear crank seals. Trying to think what I replaced now lol. Before you take the head off do a leak down test. Might as well replace the rings while your at it. I picked mine up for 30 quid from the states. Quote Link to comment Share on other sites More sharing options...
rob_sri Posted October 25, 2013 Author Share Posted October 25, 2013 Thanks guys rich yeah that's going to be top of my list, probably send the head away to be done so I don't break it Dazzi good shout on the seals too although I've heard they can be a massive ball ache lol unfortunately head is already off so I can't do a leak down Think I may have to have some help with it all though I'm running out of tools and knowledge already haha Quote Link to comment Share on other sites More sharing options...
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