GMC-IH

[AuroraGirl]

Speaking of oil ..

You must be registered for see images attach

This mod may be overkill ..
My thought here was to add more lubrication to the cam chain ..

You must be registered for see images attach

A .040" hole drilled into the NPT 1/4" plugs will do the job ..

Also doing a bit of protection by installing screens on the oil return from the top end to the pan ..

xc_hide_links_from_guests_guests_error_hide_media

what year is that oil cooler from, the gmt400 have a lot of TSBs about them and if its from the 90s i will find some of them , because the bad issues range from leaks to oil starvation to dry starts

 

[AuroraGirl]

Been many a moon since I worked on a W Series Big Block ..

You must be registered for see images attach

Buddy has a 61 Bubble Top Chevy with a 348ci in it ..
He's wanting to go though it and get it back to looking like new again ...

The car has really low miles on it, everything in the motor should still be at STD ..

You must be registered for see images attach

Fixing to find out ..

Meanwhile ...
Got a bit more work done to the 454 ..

You must be registered for see images attach

All the belts are on ..
Hoping they will stay on at 6 grand ??
Tracking looks great now .. Took a bit of work to make that happen ...

Also got around to fabricating a mount for the oil tube & stick ..

You must be registered for see images attach

Got a good start on it ..

You must be registered for see images attach

A little more welding and dressing in, be ready for paint ..

id also recommend a different alternator, one with a modern regulator like cs130 to cs130d and ad230 will have a soft start feature, meaning no belt loading until the engine is running
less likely to squeal or slip and also helps the engine by making it less resistance to turning over

And good belts and pulleys
The pulley will swap directly to a cs130 for example

 

[dragstews]

what year is that oil cooler from ?

88

 

[idahovette]

I have the GM front galley plugs with holes that are installed in each BBC I build. Supposedly it reduces a "knock" or tap in the engine, also.

 

[Shorty81]

Now that I've took the bore .060" oversize I'm wondering if it's going to be a bear to keep cool ??

Thought is to add a oil cooler to help the cause ..

You must be registered for see images attach

Whatcha think, Fellows ?

You must be registered for see images attach

My 496 runs 185 all day long. I have a direct drive fan with extension to run it deep into shroud. And with 3 core radiator.

 

[AuroraGirl]

88

Ill try to find those TSBs

 

[AuroraGirl]

Model and Year: 1988-89 K30 TRUCKS WITH 7.4L 454 CID V8 ENGINE (RPO L19, VIN CODE N) AND ENGINE OIL COOLER OPTION (RPO KC4)
TO: ALL CHEVROLET DEALERS

General Motors has determined that certain 1988-89 K30 series trucks with 7.4L V8 engine and engine oil cooler option may have oil cooler line/filter adapters that were machined incorrectly. These adapters allow oil to by-pass the engine oil cooler and/or the engine oil filter.

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

 

[dragstews]

Model and Year: 1988-89 K30 TRUCKS WITH 7.4L 454 CID V8 ENGINE (RPO L19, VIN CODE N) AND ENGINE OIL COOLER OPTION (RPO KC4)
TO: ALL CHEVROLET DEALERS

General Motors has determined that certain 1988-89 K30 series trucks with 7.4L V8 engine and engine oil cooler option may have oil cooler line/filter adapters that were machined incorrectly. These adapters allow oil to by-pass the engine oil cooler and/or the engine oil filter.

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

Dang good info ...

 

[dragstews]

Do you have a high volume oil pump?

I do ...

You must be registered for see images attach

But decided not to run it ...
Got a M77 and installed the optional blue Corvette spring in it ..

 

[AuroraGirl]

I do ...

You must be registered for see images attach

But decided not to run it ...
Got a M77 and installed the optional blue Corvette spring in it ..

later gmt400 oil coolers use different cooler line tech so if you ever had a mismatch that might help

 

[dragstews]

later gmt400 oil coolers use different cooler line tech so if you ever had a mismatch that might help

Not sure what I'll be using for lines just yet .. ??

The Fittings that are on the cooler adapter are AN -10 stuff at the moment ..
Kind of depends on the cooler that will be in play, which I haven't got around to nailing down ..

I do have a few transmission coolers on hand, but their hose ends are barbed ..
Not going to be using those ..