TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Where to go first from stock?

Thread Tools
 
Search this Thread
 
Old Jan 25, 2004 | 10:04 PM
  #1  
Kevs87Z28's Avatar
Thread Starter
Member
 
Joined: Feb 2003
Posts: 480
Likes: 0
From: Dayton, Ohio Area
Car: Yellow/Black 1987 Z28
Engine: 355 Carb
Transmission: 700R4
Where to go first from stock?

ok guys its tax time and in anticipation of a return of between 1,500 and 2,000 i would like to ask where do i go from stock? all i have now is a few small things done like k&ns, tb bypass, gutted airbox, ported front of the plenum, chrome valve covers and thats it. the only problem i have is some semi leaky valve seals. the engine has 170,000 miles on it and i believe it was rebuilt at 100,000 or 120,000 but i forget. it is still running probably as strong as the stock LB9 305 TPI can be. appearance is not a big factor right now since i cant afford paint i dont want rims or anything like tint or whatever. so help me decide where to go from this point and sort of just make some suggestions.

:hail: :hail: :hail: :lala:
Reply
Old Jan 25, 2004 | 10:23 PM
  #2  
White91GTA's Avatar
Senior Member
 
Joined: Dec 2003
Posts: 647
Likes: 0
From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
exhuast, tb airfoil, headers, upgrade ignition system, those would all be good areas to look at starting.

john
Reply
Old Jan 25, 2004 | 10:38 PM
  #3  
Kevs87Z28's Avatar
Thread Starter
Member
 
Joined: Feb 2003
Posts: 480
Likes: 0
From: Dayton, Ohio Area
Car: Yellow/Black 1987 Z28
Engine: 355 Carb
Transmission: 700R4
how hard is it to install headers?
Reply
Old Jan 25, 2004 | 10:44 PM
  #4  
shaggy56's Avatar
Supreme Member
 
Joined: Apr 2002
Posts: 1,119
Likes: 1
From: Armpit state
Car: 71 Nova
Engine: Superramed 383, Topline heads
Transmission: 700r4
Axle/Gears: 8.2 posi 3.08
If it was me I would look for a 4 bolt 350 from a junkyard or what have you get a stroker kit and take it all to a machine shop. You may not get the best heads with it but if you find something with 2.02 1.6 valves that would get you going for now. I think you could pull it with that budget. Most of the stuff you have on the 305 would work on the 350 except the injectors and chip would have to changed. But thats just what I would do.
Reply
Old Jan 25, 2004 | 10:54 PM
  #5  
White91GTA's Avatar
Senior Member
 
Joined: Dec 2003
Posts: 647
Likes: 0
From: Oklahoma
Car: 1991 Trans AM GTA
Engine: 5.7L TPI
Transmission: 700R4
I agree with shaggy on the 350. At least get a 350 and build it up. Headers can be a PITA, but once in you will be able to feel a difference. Once I got mine installed, we were able to hear what sounded like a lifter knocking, but was actually a spun crank bearing. So installing headers can bring out the unwanted in the motor if it is there.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeremys87
Electronics
16
Jul 14, 2022 09:08 PM
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
Orr89RocZ
Power Adders
206
Apr 25, 2016 08:28 AM
Genopsyde
Engine/Drivetrain/Suspension Parts for Sale
3
Oct 7, 2015 08:35 PM
SLNTSCPE
Tech / General Engine
3
Aug 22, 2015 09:15 PM




All times are GMT -5. The time now is 01:54 AM.