Modified 4.7 project complete

[XLR8928]

Here is the final product of a year and a half project engine, Installed, and running.

Specs:
-4.7us (M28-19)
-Heads have Euro cams( .472/.432 lift) 3 angle valve job, port cleanup,
new VG seals, milled .002 (surfacing)
-All intake components cleaned, inspected, lubed (as applicable), spider and plenum epoxy coated
-Full length tubular headers, Flowmaster Y-pipe, thru 3" tubing to a magnaflow muffler
-Rebuilt clutch assy.
-Ign timing set at 30deg BTDC @3000rpm
BTW-Had excellent experience with a clutch rebuilder- Relined my disc's, they work excellent

A special thanks to my wife for lending a hand as needed during engine Pulling/Reinstall, and for letting me spend money on other than Horsie stuff. Now on the the paint shop for quotes!

-Kerry

[whatudrivin]

Looking great! But is that dust I see on those intake tubes?!

[XLR8928]

Originally Posted by whatudrivin

Looking great! But is that dust I see on those intake tubes?!

Not dust...water spots! We have hard water here. Photo taken prior to engine detail
-K

[Fixer]

That's great to see Kerry, keep us posted on the paint and the rest!-Matt

[fb111]

Could you post a pic of your y pipe configuration?

[Mrmerlin]

nice restoration project. Your intake looks great

FWIW I would swap out that fly catcher air filter for a factory part,
The factory filter works better and gives 25 extra HP.

Also use a fresh factory coolant bottle cap Roger has them

[XLR8928]

Originally Posted by fb111

Could you post a pic of your y pipe configuration?

Flowmaster Y214300 - Flowmaster Scavenger Series Y Collectors
Header Collector, Steel, Slip-Fit, 2.25 in. Primary Tube Diameter, 3.0 in. Collector Diameter, Each


Essentially, I have tubular aftermarket headers, with 3" collectors, thru collector reducers to 2.25," thru the Y-pipe, thru 3" tubing to a Magnaflow 3" in dual 2.5" out muffler. (this Y-Pipe can also be used with your factory headers, but the down pipes will need altering). Note also I am not using a catalytic converter. If you have regular smog checks in your area, this setup may not fly.

[XLR8928]

Originally Posted by Mrmerlin

nice restoration project. Your intake looks great

FWIW I would swap out that fly catcher air filter for a factory part,
The factory filter works better and gives 25 extra HP.

Also use a fresh factory coolant bottle cap Roger has them

Thanks for your kind words. Without the help of yourself, Mike Ford and others, this engine may not have happened. The 928 engine doesn't require a Master Mechanic to work on, but conversely, it will not either, suffer fools lightly.
-Kerry

[fb111]

I have MSDS on mine. I was curious if the flowmaster Y pipe angle matched the angle on which the collectors converge.

[aluminum]

Great Job !!!! are those Also Euro Heads or just the Cams ? did the Cam require different Valve Springs / retainers . You in Las Vegas ?
I bet just the Cams are a big help and add lots of power on the top end

[XLR8928]

Originally Posted by aluminum

Great Job !!!! are those Also Euro Heads or just the Cams ? did the Cam require different Valve Springs / retainers . You in Las Vegas ?
I bet just the Cams are a big help and add lots of power on the top end

They are standard '83 4.7s heads. The stock cam specs for that motor are: .435/.395 . So far, I've experienced zero compatibility problems. It's not quite as "snappy" down low, but at 2000rpm its about equal, and at 4000 rpm, power is muchly improved. I kinda want a full '84-85 euro now (or better... an S4!) I hope my wife gets out of law school soon, so she can buy me one! (my luck, she'll just buy more horses.)
BTW- I live n Pahrump..A little town 60 miles NW of Vegas. (I'm 15 minutes from the Spring Mountain Race track)
-K

[XLR8928]

Originally Posted by fb111

I have MSDS on mine. I was curious if the flowmaster Y pipe angle matched the angle on which the collectors converge.

No

[aluminum]

Originally Posted by XLR8928

They are standard '83 4.7s heads. The stock cam specs for that motor are: .435/.395 . So far, I've experienced zero compatibility problems. It's not quite as "snappy" down low, but at 2000rpm its about equal, and at 4000 rpm, power is muchly improved. I kinda want a full '84-85 euro now (or better... an S4!) I hope my wife gets out of law school soon, so she can buy me one! (my luck, she'll just buy more horses.)
BTW- I live n Pahrump..A little town 60 miles NW of Vegas. (I'm 15 minutes from the Spring Mountain Race track)
-K

I Know Pahrump I have a house in the Rancho area of L.V. off Vegas Drive
The Euro Cam's you have Like increased compression / air flow / and the larger Valves as well as a lot of other things no doubt you know .
intake lift exhaust lift intake duration exhaust
duration
78/79 .435 .395 227 216
80/82 .396 .350 216 206
80/83 usa .435 .395 215 203
80/83 euro .472 .432 223 215
84/86 euro .472 .432 228 219
Here is a interesting Page from the net that perhaps you have seen already related
Link to Page Re Cam Swap
Euro Cam Swap
I have a home in CA as well but am heading your way soon perhaps we shall meet at some point as we are somewhat Neighbors .
anyway great Job on the 928

[Danglerb]

Nice work, another 928 back on the road.

Don't forget the cover for the jump post and 14 pin, the plastic shield that clips to the fender.

Y merge looks pretty good for $44 shipped, I'm tempted to get one instead of letting the local guy "make one". Flowmaster Scavenger Series Collectors - Free Shipping on All Orders @ JEGS

[MPDano]

We need a video of it running. To me, looks a picture of a cleaned up 16 valver. Good job man!

[XLR8928]

Originally Posted by MPDano

We need a video of it running. To me, looks a picture of a cleaned up 16 valver. Good job man!

My wife recorded it. I will put it on Pelican by next week. Beware though.. the headers were "uncorked". It sounds like a Grand National stock car
-K

[XLR8928]

Originally Posted by aluminum

I Know Pahrump I have a house in the Rancho area of L.V. off Vegas Drive
The Euro Cam's you have Like increased compression / air flow / and the larger Valves as well as a lot of other things no doubt you know .
intake lift exhaust lift intake duration exhaust
duration
78/79 .435 .395 227 216
80/82 .396 .350 216 206
80/83 usa .435 .395 215 203
80/83 euro .472 .432 223 215
84/86 euro .472 .432 228 219
Here is a interesting Page from the net that perhaps you have seen already related
Link to Page Re Cam Swap
Euro Cam Swap
I have a home in CA as well but am heading your way soon perhaps we shall meet at some point as we are somewhat Neighbors .
anyway great Job on the 928

I look forword to it! I'd love to get a bunch of Shark people up here for a BBQ (we do some epic ones at our Ranch). The LV chapter of the PCA does some track days at Spring Mountain...Fun to watch! Also, A bunch of us do Barratt Jackson in Sept at the Mandalay Bay
-K

[MPDano]

Originally Posted by XLR8928

My wife recorded it. I will put it on Pelican by next week. Beware though.. the headers were "uncorked". It sounds like a Grand National stock car
-K

That's nothing since I went to me and my families first Monster Jam last Saturday and I didn't wear any hearing protection. My hearing is already jacked up from the days of Walkmans. Here's a jammin video I took of a crash rolling towards us.

[XLR8928]

[XLR8928]

Originally Posted by XLR8928

Flowmaster Y214300 - Flowmaster Scavenger Series Y Collectors
Header Collector, Steel, Slip-Fit, 2.25 in. Primary Tube Diameter, 3.0 in. Collector Diameter, Each


Essentially, I have tubular aftermarket headers, with 3" collectors, thru collector reducers to 2.25," thru the Y-pipe, thru 3" tubing to a Magnaflow 3" in dual 2.5" out muffler. (this Y-Pipe can also be used with your factory headers, but the down pipes will need altering). Note also I am not using a catalytic converter. If you have regular smog checks in your area, this setup may not fly.

pulled my exhaust system to install the Y pipe (replacing the MSDS unit) I fabbed up from a flowmaster unit. I must say that the engine feels stronger everywhere.
K