FST99Z28

I suppose I should start off with my planned list of modifications and let you help me decide if I should rebuild my 99 LS1 76K shortblock . Or would I be fine leaving it alone?

Engine Related Mods planned:
Fast 102mm intake
92MM TB
Fast fuel rails
Bosch Green Injectors
CNC ported 243's w/ 5 angle valve job
Crane Dual Springs
LS2 Adjustable timing set
Custom grind Comp Cam 220/224 .581 .581 112 LSA
Kooks 1 7/8" race headers
Comp Cams Rockers, lifters, and -.050 pushrods.


This is an NA car, I don't plan on spraying either.

I drive it to work occasionally and race at the track 3-4 times a year. I do plan on installing ARP rod bolts.

Thanks in advance for your input.

Darkman

iTrader: (2)

A LS1 shortblock is generally considered good for 200k miles if properly maintained and not subjected to abuse such as operation above redline. If you are in doubt run a compression check on it. Otherwise, it should be good to go.

FST99Z28

The engine is in great shape, just figured I would get some input. Thanks!

mike c.

iTrader: (1)

Don't bother ti'll she blows.

brooknasty

iTrader: (1)

It will be fine leaving it alone, but tearing engines apart and assembling them is just plain fun!

NHRATA01

iTrader: (10)

Yeah at 76K you have a ton of life left in the shortblock, I would leave it alone.

98z8uup

iTrader: (7)

If taken care of they are good for 200,000 miles ask me how I know.