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bottom end recontruction


Proven Member
Oct 6, 2009
chalfont, Pennsylvania
hey guys, so after putting all the work into match porting and polishing my cylinder head, cutting the valves and such, ive become concerned with how well the bottom end of my motor will last, it has 189xxx on it,and the last thing we all want is for a piston to slam into all of our hard work, i wanted to hear some street setups of bottoms ends that are reasonably priced. this car is my daily but i do push 20psi out of my tdo5h ...

i know i need,
  • main bearings
  • rod bearings
  • balance shaft removal kit
  • possibly rods?
  • would stock 1g piston heads be okay?
  • new rings

input and experiences are welcome!


Supporting VIP
Apr 27, 2009
Langham, SK_Canada
Definately put new bearings (both OEM or ACL bearings would be just fine) in while your at it, and it you can afford to, get some 2g pistons (slightly higher compression). The 1g rods and crank will be more than enough.


Proven Member
Dec 19, 2002
Davenport, Iowa
It rarely hurts to upgrade (though depending on which bearings you may use some people would advise you use different oil as well), but you're not really asking a lot from your engine. I'd do a 2G/Evo piston on a 1G rod and call it a day.


Proven Member
Jan 2, 2011
Terre Haute, Indiana
While you have it apaet you should get some 2g pistons. Higher compression and a lil tougher incase your plans change in the future. Also you should get your stock 1g rods reconditioned and some arp 2000 rod bolts installed. Youd be set then, and not too much coin:)


Proven Member
Oct 6, 2009
chalfont, Pennsylvania
acl bearings, 2g pistons on 1g rods(already have bc its a 90 6bolt with arp rod bolts, rings, and a balance shaft removal is what im liking right now, i wanna do this safely bc ive put alot of time into making my cylinder head just the way i want it.


Supporting Member
May 22, 2007
Kalamazoo, Michigan
Well there you go im down and im deciding which path i want to take upgrade seems the way engine, possibly turbo set up too. Yeah get that balance shaft while your there, mine broke once but no engine damage whew.
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