Well.. I don't know how much longer I'll be in the 2.8l world.. probably only a few more months.. anyway, I'm worried after 154k miles my valve guide seals are more than a little worn.. intermittent oil problems in cyls. Anyway, would the performance gains be worth the effort to yank the heads, replace the seals, replace the rocker arms with 1.6:1's, replace the valve springs, possibly shave the heads a 1/1000" or 2, and (if I'm feeling gutsy) port 'em?

EDIT: Forgot to mention I'm still willing to put money into it since I'm selling the engine to a friend when I get my 8.. and I'm sure that friend wouldn't mind paying a little more for a higher performance 2.8

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'86 Camaro SC, black /w silver racing stripes
2.8l MPFI/700r4
In search of new v8 engine & transmission
MSD coil, Accel 8mm wires, SplitFire plugs, Gabriel hijackers

[This message has been edited by TechSmurf (edited January 23, 2001).]

 

I would say go for it.....

 

Go for it, i have been playing with a 3.1L on an engine stand now for 5 to 6 months. I have had the block bored and fully preped, the heads have been preped and shaved. Forge pistons, yadda yadda. Anyways go for it. I spent about 2 months going back and forth about modding a 3.1L or spending LESS money to make MORE power in a 350 car. 3/4's of the fun is the search for parts and putting it together. I have full plans to sell my car with the modded engine in 6 months to get a V8, but the lessons learned and the final product makes it all worth it.



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91 Firebird
3.1 w/
K&N filter, 160 stat, No TB heat, Direct Cold air, DynoMax CatBack, B&M MegaShifter, Performance Shift Kit,
Bosch platinum plugs,
7mm "stock" wires, Jensen CD330X Head unit, Jensen 120watt rear speakers
Stock front speakers,

0-30mph 4.25 Best 4.09
0-60mph 9.16 Best 9.09