glenn
February 6th, 2008, 06:33 PM
Hello everyone,
Thought you might be interested in a engine build that a local builder finished up for me.
He did all the machine work in house and all the installation of parts on the motor. I bascily
observed the process and made decisions on his advice and dicussions on parts from tech
reps from various companys. Ihave know experience in building an engine, but i wanted to
learn how a engine goes together and how it makes it power. Iwas able to stop by his shop
regularly and see what he was working on, dicuss parts and options do some research and
then order the parts that we thought were best. This process took about two years. My
goal was to have a strong motor for the street be dependable, driveable and have more power than i have now. The dyno runs showed we had very good results. Torgue runs were from 2000rpm/480lbs, 4500rpm/540lbs, to 6000rpm/460lbs. Horsepower runs were from
2000rpm/184hp, 4500rpm/461hp. to 6000rpm/530hp. The engine was run in over a two
day period, it had no oil leaks, but a minor water leak at the thermostat housing. Engine wo would idle at 800rpm and sounded great. I'm very pleased wih these numbers in a power range of 2000rpm to 6000rpm. I believe this motor will preform very well on the street and have plenty of power. Now to decide where to use it, in the cobra, or in a 68 mustang fastback? The folling is a list of some of the specs. and parts we used.
Engine; 428cj FE, bore 4.160, stroke 3.984, cid = 434
Block; cooked and cleaned, pressured tested and magnafluxed
lined bored, bored to .030 and honed
squared decked, modified oiling system based on 427 specs.
crank; 428 cast iron
magnafluxed, miked, ground crank to .010-.010
seal power- main bearings, 2.741, journals 2.7385, clear .0025
seal power- rod bearings, 2.441, journals 2.4385, clear.0025
pistons; wiseco, forged flat top
piston rings- seal power
piston pins- wiseco, with spiral locks
connecting rods; eagle, center to center length 6.490
camshaft; predator cams, had it ground by a local company.
hydraulic roller, lobe lift, intake .328, exh. .338, valve lift, int, .567, exh, .585
valvetrain; erson, rocker arm ratio 1.76
push rods- crane, 8.5 length
intake valve springs-crane
spring seat pressure 120 lbs.- spring open pressure 394 lbs.
crane - giridle & retainers
heads; ford cj cast iron, inlarged and flowed bowls.
intake and exhaust seat angles top 30, seat 45, bot. 60 degrees
head cc at 72 compression ratio 10.293
head flow @ 25" h20, @ .200" intake 130cfm, exh. 101cfm
@ .550" intake 239cfm , exh.164cfm
induction; blue thunder alum. dual plane intake manifold, single carb
demon 750 carburetor
misc; melling oil pump,
canton - windage tray, oil pan,
msd ingition, rev limiter, coil, ford distributor.
edelbrock water pump
march serpentine pully system
ram clutch and alum. flywheel
This is most of the specs and parts we used in the build. A lot of you fellas will understand the numbers better than i do, but i'm trying to learn. So their it is,if you have any thoughts or how you would do it differently i be curious to know. I'll try to post a couple pictures.
glenn
Thought you might be interested in a engine build that a local builder finished up for me.
He did all the machine work in house and all the installation of parts on the motor. I bascily
observed the process and made decisions on his advice and dicussions on parts from tech
reps from various companys. Ihave know experience in building an engine, but i wanted to
learn how a engine goes together and how it makes it power. Iwas able to stop by his shop
regularly and see what he was working on, dicuss parts and options do some research and
then order the parts that we thought were best. This process took about two years. My
goal was to have a strong motor for the street be dependable, driveable and have more power than i have now. The dyno runs showed we had very good results. Torgue runs were from 2000rpm/480lbs, 4500rpm/540lbs, to 6000rpm/460lbs. Horsepower runs were from
2000rpm/184hp, 4500rpm/461hp. to 6000rpm/530hp. The engine was run in over a two
day period, it had no oil leaks, but a minor water leak at the thermostat housing. Engine wo would idle at 800rpm and sounded great. I'm very pleased wih these numbers in a power range of 2000rpm to 6000rpm. I believe this motor will preform very well on the street and have plenty of power. Now to decide where to use it, in the cobra, or in a 68 mustang fastback? The folling is a list of some of the specs. and parts we used.
Engine; 428cj FE, bore 4.160, stroke 3.984, cid = 434
Block; cooked and cleaned, pressured tested and magnafluxed
lined bored, bored to .030 and honed
squared decked, modified oiling system based on 427 specs.
crank; 428 cast iron
magnafluxed, miked, ground crank to .010-.010
seal power- main bearings, 2.741, journals 2.7385, clear .0025
seal power- rod bearings, 2.441, journals 2.4385, clear.0025
pistons; wiseco, forged flat top
piston rings- seal power
piston pins- wiseco, with spiral locks
connecting rods; eagle, center to center length 6.490
camshaft; predator cams, had it ground by a local company.
hydraulic roller, lobe lift, intake .328, exh. .338, valve lift, int, .567, exh, .585
valvetrain; erson, rocker arm ratio 1.76
push rods- crane, 8.5 length
intake valve springs-crane
spring seat pressure 120 lbs.- spring open pressure 394 lbs.
crane - giridle & retainers
heads; ford cj cast iron, inlarged and flowed bowls.
intake and exhaust seat angles top 30, seat 45, bot. 60 degrees
head cc at 72 compression ratio 10.293
head flow @ 25" h20, @ .200" intake 130cfm, exh. 101cfm
@ .550" intake 239cfm , exh.164cfm
induction; blue thunder alum. dual plane intake manifold, single carb
demon 750 carburetor
misc; melling oil pump,
canton - windage tray, oil pan,
msd ingition, rev limiter, coil, ford distributor.
edelbrock water pump
march serpentine pully system
ram clutch and alum. flywheel
This is most of the specs and parts we used in the build. A lot of you fellas will understand the numbers better than i do, but i'm trying to learn. So their it is,if you have any thoughts or how you would do it differently i be curious to know. I'll try to post a couple pictures.
glenn