Fun with Ted, Todd, Bill and Paul…Resurrecting an Ultimate Rebuild.

[Husker6.5]

A few thoughts.

Note that a decked block changes the relationship of the intake manifold and cylinder head.. Port and bolt alignment.. It can be fixed by another machining operation..(yay... milling of the intake) Same goes for the t-stat xover..

Vic Edlebrock showed back in the '50's that the very slight misalignment of the intake ports due to milling the heads had absolutely no effect on flow. As for any misalignment/interference between manifold bolts and their holes in the intake when bolting on after taking .010 off the heads, again well within the clearance tolerances of the manifold. Take into consideration that you are also using an intake gasket, too.

Machining the intake manifold to compensate for the minimal planing of the heads is merely an act of Type A anal-retentives for bragging rights and the fattening of their machine shop's wallets. Just my humble opinion from many years of helping to build 600+ hp naturally aspirated 327 SBC's for my dad's sprint car team back in the '60's. (BTW, Vic also helped with setting up the custom grind cam specs for the engines we built).

 

[Twisted Steel Performance]

Well, I understand and know about the different cam specs also, I guess that if Heath or whoever is building the motor has the needed knowledge about the cam specs, that is something that I was under the impression wouldn't be provided with the new cams to the public, and a person would need to find out on there own ?? As it turns out that is some much needed info that is not provided with the cams.

I sure will be glad to see things start going a little smoother with this thing....... :grin:

 

[Paveltolz]

Well, I understand and know about the different cam specs also, I guess that if Heath or whoever is building the motor has the needed knowledge about the cam specs, that is something that I was under the impression wouldn't be provided with the new cams to the public, and a person would need to find out on there own ?? As it turns out that is some much needed info that is not provided with the cams.

I sure will be glad to see things start going a little smoother with this thing....... :grin:

Thanks, I was hoping to have something together and be able to post the 'after' performance results from a dyno run to help others (and myself) see something that would help in deciding on one of the cams. As for the concerns with the cams, I take it you're talking about clearance issues with the valves. Guess that's why there's the caution about using the roller rockers. I haven't seen the instructions or discussed things with Bill but I would like to believe he'd discuss all that with a potential buyer. Maybe Red could chime in on this one and any observations he's had since buttoning things up.

My best wishes to you and and Red on your builds as well. I know you're both anxious to get things in and going too but are wisely taking the time to do it right...once. By the way, I have a functioning but worthless to me vac pump if you're still looking for one.

 

[Twisted Steel Performance]

Thanks for the offet on the vac, bought one yesterday..... and I didn't know Red had his up & going yet????

 

[3500GMC]

Machining the intake manifold to compensate for the minimal planing of the heads is merely an act of Type A anal-retentives for bragging rights and the fattening of their machine shop's wallets.

Why not have it 'right' like GM/Detroit designed it? Sure it may bolt up but will it SEAL? Though a small misalignment isn't really a huge deal I agree.

I didn't mention it before but what about the change in heights effect on valvetrain with the non-adjustable rockers? Do you think the plungers in the lifters will absorb this? Different pushrod length?

I cover all bases- or try to.. Much rather get all the info out there... Ultimately it's up to the owner as he's the guy footin' the bill... :thumbsup: Now at least some folks can be better armed with knowledge heading into the machine shop.

 

[Paveltolz]

..... and I didn't know Red had his up & going yet????

Sorry for the misslead. I don't believe he's got it in and running but if I recall correctly, he's got the cam in and may have the heads on and, as such, will have turned things over albeit by hand. Anyway, that and what he recalls from conversations with Bill would be of interest and edification.

 

[Husker6.5]

Why not have it 'right' like GM/Detroit designed it? Sure it may bolt up but will it SEAL? Though a small misalignment isn't really a huge deal I agree.

I didn't mention it before but what about the change in heights effect on valvetrain with the non-adjustable rockers? Do you think the plungers in the lifters will absorb this? Different pushrod length?

I cover all bases- or try to.. Much rather get all the info out there... Ultimately it's up to the owner as he's the guy footin' the bill... :thumbsup: Now at least some folks can be better armed with knowledge heading into the machine shop.

Of course it will still seal. When you mill the heads/block, you are NOT changing the angle relationship between the heads/intake manifold (remember high school geometry and congruent right triangles?). As far as the valve train goes, a hydraulic lifter valve train will compensate automatically for the planing when the backlash is adjusted, and for solid lifters, when you use a feeler gauge to set rocker to valve tip clearances. The only time you really have to worry about going longer with the push rods is when you use a taller aftermarket head. There are of course individual instances when the combination of deck height, aftermarket heads, really radical cam, different ratio rockers and other factors necessitate the use of longer stemmed valves or longer/shorter push rods when assembling the upper end, but for the vast majority of street and racing engines, stock length push rods work just fine (although you might go to larger diameter to handle greater spring pressures/limit push rod deflection).

 

[ak diesel driver]

when I built my 428CJ I had the heads milled to get the CR I was shooting for. Been awhile but IIRC I had .020 removed and then I had the get the manifold milled as the bolt holes wouldn't line up.

 

[Husker6.5]

It does also depend on how much you deck the block/mill the heads as to how the holes line up, and the tolerances the engine was manufactured to, but except for really aggressive machining (like .040 off the heads), milling the intake manifold on a SBC was an unnecessary thing as there was enough clearance in the manifold bolt holes. Now, an aftermarket manifold casting can be a whole different matter, as tolerances tend to be much tighter. For instance, IIRC, if you take .010 off the heads, you only need to take .004 off each side of the manifold (it's a trig function). As you see, with a stock manifold, milling is unnecessary.

 

[Paveltolz]

Installed the Mag-Hytech differential cover I bought for my 'to me' birthday present.
Before:

After:

Father and son friends dropped by to talk about their latest project. Son owns the "Deuce." Dad is Gary, the man who did the work on my intake spacer. Great guys.




Went over to see the tires he got from Govt. Liquidators. They came off an MRAP.
I doubt I could get enough lift to make them work for me


but they'll be fine for him when he converts it to a SRW axle set up.


Fun stuff.

 

[btfarm]

Fun stuff indeed! :thumbsup:

 

[Landmine]

Deuce's are awesome,
My friend has one with 53" tires on it

 

[Husker6.5]

I actually enjoyed driving my Gamma Goat back in my enlisted days in the Mech Inf. An articulated, amphibious, selectable 2x6/6x6 powered by a 3 cylinder Detroit diesel that sat right behind your head. Was able to get it up to 70+ mph on the downhills on the road.

 

[Landmine]

There is a gama goat parked at fort devens, along side a bunch of tanks on display along the road.
I drive very slow when i drive through there admiring all the trucks.

I've read they are interesting to drive and take a skilled operator. 70 must have been

 

[635]

I am going to have to blame Limey for turning this thread into a military vehicle thread! It isn't his fault but I will blame him anyway! Even short comments are still at the wrong place.

Can't help it guys, this was supposed to be a post about the rebuild of Paul's engine and the end of my troubles with my dually!

 

[Paveltolz]

I am going to have to blame Limey for turning this thread into a military vehicle thread! It isn't his fault but I will blame him anyway! Even short comments are still at the wrong place.

Can't help it guys, this was supposed to be a post about the rebuild of Paul's engine and the end of my troubles with my dually!

Ha. The side-tracking is probably all my fault, not Sunshine's but for some twisted reason I'm willing to let it rest on him. However, I am known for maintaining 'folksy' threads, or so said Mike way back at the beginning of this sojourn. I appreciate the friendly and all but honestly, I need to behave and this is hardly tracking as a "Performance" thread.

Ok, back on track. Ted's truck is running and just needs the grill re-installed and it will be ready for the next series of stuff such as running board tanks, spit and polish and probably a new coat of paint. Important thing though is we are technically at "Two Down, One to Go" status.:thumbsup:

I'm the 'one to go' and will do so on a new thread. This one is just too %^&* painful to read, or so I've been told by some member's wives who have had to hide sharp instruments from their husbands after they've read this.

Mod's Please put a fork in this thing, it's DONE.

 

[btfarm]

Thread closed at OP request...

I enjoyed it anyhow.