Custom 6.2l build - new guy here

[Anubis]

Ok now I know this will be a PIA, but I need to see under those dead sexy rocker assemblies to see how the blocks fit together and how the head was machined ....... I am going to have my Machinist do this ...........

 

[ak diesel driver]

there might be some pictures in the original build by maxpf on the k5 forum

 

[Mikey von]

these are all that I could dig up - from MaxPF's build on CK5.

 

[Mikey von]

 

[Mikey von]

 

[Mikey von]

MaxPF is still a regular over at CK5. I would pop in there and ask him details if need be.

 

[Anubis]

that is dead sexy ...... need to find a set of heads worthy of this treatment ......

 

[buddy]

In order to get the thick shaft base rockers there he cut off the stock shaft pedistal and put in that thinner square mount for the shaft. I was wondering about that, because just by looking at it I couldnt imagine how the roller rockers were going to fit. I was looking for some more narrow aluminum ones so it would fit, but this might be the better route.

I'm not sure if steel is needed, although desireable.

 

[3500GMC]

I don't know the brand. just BBC 1.7:1 stainless steel roller rockers ...... look like yours 'cept they have not been drilled for the shaft. new in box $145

the add does give the brand.... I just can't recall it

Mikeys rockers are a BBC unit with the fulcrum removed. There are two roller bearings pressed in each rocker that rides on the tool steel rocker shaft that were surface hardened to prevent brinelling- or wearing grooves.

The mounting blocks were also hardened due to the rockers being guided between the snap rings and blocks.

I read this in another thread somewhere. (edit: it was THIS thread... )

Beware of cheapo rockers...

 

[Mikey von]

Mikeys rockers are a BBC unit with the fulcrum removed. There are two roller bearings pressed in each rocker that rides on the tool steel rocker shaft that were surface hardened to prevent brinelling- or wearing grooves.

The mounting blocks were also hardened due to the rockers being guided between the snap rings and blocks.

I read this in another thread somewhere. (edit: it was THIS thread... )

Beware of cheapo rockers...

There are some details posted in this thread. If you really want the full scoop, check out MaxPF's original build thread in diesel section of CK5.

 

[Mikey von]

I have been trying to spend as much free time working on the truck, problem being I only get a few hours of time a week. I have gotten the new transmission mounts on, new engine mounts on the frame, old exhaust cut out, and oil supply line completed.

I have run into a few hiccups;

- exhaust crossover does not seem to fit. will have it either custom made or will order from banks (same with downpipe).

- t-stat crossover is the wrong one and interfere serp setup accessories. I am guessing the 6.5l single t-stat is the correct one?

- broke a bolt on valve cover. Not sure how this happened. Was replacing a stud with a bolt and broke while tightening to 35lbs. Have not spent much time on this and will give it a go this weekend.

Stuff I need to figure out;

- what nuts to use to hold turbo onto manifold???

- where to get the silicone?? hose that connects the turbo intake hose to the tophat?

- how the passenger side AC and vac pump (and brackets) bolt up?

I am sure there is a lot more



some more pics -

Where can I get these silicone hose (blue in pics)?

Wrong t-stat crossover?? The outlet hits the Alt/idler bracket and accessories. I am guessing the 6.5l sing t-stat housing is the correct one?

 

[chrisk1500]

Yes.Wrong t-stat housing. You need the 6.5 version.

 

[6.2 turbo]

Did you check lifter preload ?

 

[Veg_Out]

I was able to source some of that hose at full on semi truck repair facilities. They use it for coolant hose.

 

[Mikey von]

Did you check lifter preload ?

Preload as in making sure they pump up correctly while priming oil? Yes.

 

[Mikey von]

So I am having some problems getting my engine in. I am pretty sure it is the oil pan hitting the cross member. I have the engine and transmission bolted together. The tranny mount bolts are out and the whole thing actually needs to come forward about 1/2" - 1". It only hits on the drivers side.

What can be done to fix this? Can the cross member be persuaded to move or notched or something?

 

[NVW]

If it were me I would modify the oil pan, notching the cross member would weaken it.

 

[Mikey von]

If it were me I would modify the oil pan, notching the cross member would weaken it.

I lack the skills to do this, plus i think it is pretty tight under the pan with the stud girdle.

 

[NVW]

Is that the height the block will be at when it sits in the motor mounts?

 

[Mikey von]

Is that the height the block will be at when it sits in the motor mounts?

Just about. The motor mount is on the frame on the passenger side and about 1/2 -3/4" off the frame on the drivers side.