hate to do this,
Posted: October 2nd, 2014, 9:54 am
been creeping on here for over a year, been collecting parts slowly. time to get some pro opinions.
starting with a 93 LO block as it was cheep, decked to 0.005 - 0.0000 and bored 0.030 over
4.2 crank from 89. 4 weight
4.0l rods will have peened and mag fluxed
7120 cast head. want to port and polish it and look into raising the bottom of the exhaust port to decrease turbulence increase flow
99+ intake with 91-93 fuel rail (hesco adjustable regulator still need)
27lb/hr 99+ injectors and (adapter plugs ev1-ev6 still need)
pacesetter 70-1129 longtube headers
probably an over bored to 63.5mm stock throttle body at first.. get a 68mm intake later
need to purchase
IC944 pistons with a 21cc dish
high flow oil pump
high flow water pump.
new cam gears and chain
from what I understand of my little knowledge of cams is that the stock large 46* overlap cam is possibly the best N/A lo compression cam available and the only real upgrades worth doing are adjustable rockers with a larger ratio and springs if need be to match.. am I right on this? seams every other guy out there has problems with his valve train when upgrading it I was eyeing up the comp cams 232 I think it was maybe the 231.. and neither are really that much better, without that overlap the supercharging effects of this intake and exhaust combo will suffer. they are just dual pattern and higher lift, which can be attained by increasing the ratio slightly on the stock one.. I know I will be sacrificing power by having such large dished pistons and stock cam lowering the DRC but I want this motor to be a better than stock replacement that is more fuel efficient and over all happier on the trail/ street.
maybe a crane 753941,we will see. thanks for having me
my goals are to get the most efficiency out of my build, from life span, horse power to fuel mileage I want this to be a balanced build
starting with a 93 LO block as it was cheep, decked to 0.005 - 0.0000 and bored 0.030 over
4.2 crank from 89. 4 weight
4.0l rods will have peened and mag fluxed
7120 cast head. want to port and polish it and look into raising the bottom of the exhaust port to decrease turbulence increase flow
99+ intake with 91-93 fuel rail (hesco adjustable regulator still need)
27lb/hr 99+ injectors and (adapter plugs ev1-ev6 still need)
pacesetter 70-1129 longtube headers
probably an over bored to 63.5mm stock throttle body at first.. get a 68mm intake later
need to purchase
IC944 pistons with a 21cc dish
high flow oil pump
high flow water pump.
new cam gears and chain
from what I understand of my little knowledge of cams is that the stock large 46* overlap cam is possibly the best N/A lo compression cam available and the only real upgrades worth doing are adjustable rockers with a larger ratio and springs if need be to match.. am I right on this? seams every other guy out there has problems with his valve train when upgrading it I was eyeing up the comp cams 232 I think it was maybe the 231.. and neither are really that much better, without that overlap the supercharging effects of this intake and exhaust combo will suffer. they are just dual pattern and higher lift, which can be attained by increasing the ratio slightly on the stock one.. I know I will be sacrificing power by having such large dished pistons and stock cam lowering the DRC but I want this motor to be a better than stock replacement that is more fuel efficient and over all happier on the trail/ street.
maybe a crane 753941,we will see. thanks for having me
my goals are to get the most efficiency out of my build, from life span, horse power to fuel mileage I want this to be a balanced build
