Building Chevy 4.3 liter V6 - 1994 with balance shaft

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 '''MY HISTORY - NICE TO KNOW''' (skip if you want)
 Having said this you may want to know why you may continue reading the stuff a guy writes up which is not even a mechanic. Have a look at the profile.
-Actual project status and outlook chronological order bottom to top (newest on top):
-...
-Machine
-Decide what to do to the block and heads
-Remove all casting stuff, sharp edges etc.
-Crack checking the block, heads, crank
-Take all parts to the machine shop to hot-tank
-Disassemble all pistons, rods
-Disassemble the heads
-Remove lifters cam, balance-shaft, plugs and all from block
-Build engine stand
--JAN-22: Engine tear-down nearly complete. Moved all the stuff to my place.
--JAN-21: Engine tear-down done. The crank and the rotating assembly has to go tomorrow.
--DEC-28: Loose brainstorming - trying to formulate what I want it to become.
 ----
-GOAL
+== PROJECT GOAL ==
 This shall become a daily driver able to tow and remain emissions legal. That means no fancy exterior bolt-ons, no crazy camshaft, no crazy horsepower, needs to remain within emissions with catalytic converter.
-WHAT IS PLANNED
+'''WHAT IS PLANNED'''
 I can throw a bit of money at it and do all the stuff except for machining myself. The budget is 7'500 $ to start with with a bit of allowance for better parts. I can keep the machining in reasonable limits as I know the guys well and can help with the time consuming stuff.
-Planned is:
-- Blueprint
-- Up compression to 9.8:1 up to 10.5:1 to use pump gas at a minimum of 95 ROZ (that is our minimum rating in Europe)
-- Rods
-- Pistons and rings
-- Valves and seats (not too sure about increasing the size - have to figure that, as I will have more lift anyways.)
-- Ignition
-- Evtl. required TBI upgrade (chip)
-Loose order of questions:
-- Increase valve size yes or no? (Will depend on the heads - may have to flow them at various lifts to see what happens.)
-Loose order of things to-do:
-- Disassemble and clean
-- Crack checking block and heads and crank
-- Figure what exact heads are on the engine
-- Flow them
-- cc them
-- calculate compression of the original engine etc.
-- cc the ports
-- measure, note, measure, note...
-- remove all burrs, sharp edges, make it look nice outside (casting) and inside
-- Port matching
 == TECH STUFF ABOUT THE 1994 4.3l V6 ==

Building Chevy 4.3 liter V6 - 1994 with balance shaft

Revision as of 07:33, 23 January 2016

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