yes, my plan was to run it, but because I found it I had to include it in the video.
My home inspection of Speedmaster heads
- Thread starter 318willrun
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j par
Well-hung Member
It would seem like with the adjustable rockers that much wouldn't make a huge difference if any...
keep in mind, the millions of 318's, 340's, and 360's that were produced were not inspected with this kind of scrutiny from the factory. They had tolerances, a min/max/mean or nominal. And folks put 200,000 miles on these babies without batting an eye.
j par
Well-hung Member
hey if it wasn't for all the gurus around here and the internet I would have already had in my mind to just clean them up and bolt them on..
Even worse is calling around to head shops and having them say I wish we could sell heads with a piece of paper that says you have to have them checked out or we give you no warranty LOL....
I believe they should be checked out, but I'm comfortable doing it myself. I'm not taking anything away from machine shops, and they can check things more precise than i can. But I'm comfortable with my inspection, and if needed, i can bring it to a machine shop to fix something I found. But if I'm going to pay a machine shop to pull them apart, inspect, etc., I'll buy the bare castings and have the machine shop do the valve job/assembly with the hardware I bought.
j par
Well-hung Member
Are you still going to lap the valves?..
Exactly.
j par
Well-hung Member
Can you say you got big block heads as well? Oh yeah they're being built..
Any idea on what the plan is for all the stuff or are you just still spinning..
I will clean that burr off just below the seats, and I may touch them with the lapper but I may not means they sealed.
I still plan to change just the 4 things on my Duster. I would still like to put the magnum heads on a LA because I've never done that swap and I have 100% everything to do it. I'd still like to build a BB Duster. We'll see...
j par
Well-hung Member
Translation: still spinning...lol...
j par
Well-hung Member
Get a 440 block have it prepped and call 440 source for a stroker kit...
And after you make that order look at your son and tell him he's screwed...
And after you make that order look at your son and tell him he's screwed...
absolutely, 100% no way I stroke a 440. LOL. I may put a 440 crank in a 400....
As far as valve jobs some of you guys are spoiled. I got away from stones years ago and moved to Neway valve seat cutters but I’m limited to your basic 60-45-30-15-10 valve angles instead of you custom angles. I almost had that ability 6 years ago when a friend closing his speed shop offered me his mill and all attachments for 1200.00. If my son had any interest in doing heads I would have bought it but he doesn’t so I didn’t. I think my heads do ok with old school technology so I’m stuck there. For guys that have never seen Neway cutters here’s a link. I bought mine in bits and pieces on eBay over the years
Neway Valve Seat Cutting System
Neway Valve Seat Cutting System
j par
Well-hung Member
Why not? I know that would be a pretty big jump from what you have it might be scary...
...Why hold back?...
100% not needed. There are enough folks out there with underachieving strokers turning to NOS trying to please a 11 second appetite, don't throw me in that crowd.Why not? I know that would be a pretty big jump from what you have it might be scary...
Why hold back?...
j par
Well-hung Member
well I'm not trying to get started here so I did not hit the disagree button like I really wanted to but my friend that is running a stroke big block (74 Duster) in the high 9's is not using any nitrous (I think "nos" is what the tuner guys use) and if your Sly comment is referring to my stroker being underachieving that may be in your eyes but it has achieved everything I've ever wanted it to. The idea of using aluminum heads is just something I've always wanted along with trying nitrous is something I always wanted to try. Unfortunately the reoccurring cost of nitrous will keep me away from it.. unlike the aluminum heads are just a one-time cost hopefully lol...
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Why not? I know that would be a pretty big jump from what you have it might be scary...
Why hold back?...
LOL....
anyways, you'll be fine going through your heads right at home.
Now, I'm no guru and I am not there standing next to your heads, BUT, it looked to ME like there was too much slop in the guides. Hard to tell, because I think there was some movement of the whole head, but I'm not certain. If there was not, I know I was seeing at least .005" movement. That's too much.
That SAID, I would rather them be a "little" loose.
But again, I'm not there, so that call is hard to make. They look like good castings, though.
That SAID, I would rather them be a "little" loose.
But again, I'm not there, so that call is hard to make. They look like good castings, though.
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j par
Well-hung Member
Then just as a reminder all this stuff is not needed! LOL..LOL....
Or are you saying you needed small-block and big-block Speedmaster heads or you we're going to have health problems...
j par
Well-hung Member
Maybe a little knurling would help the oiling...
when I say I wing it, no plan, I'm sporadic, this is what I mean. -- Plan was to buy ProMaxx. Couldn't pass up 40% off so I buy SM. Wait, 40% off??? why not big block heads as well, don't use 'em I'll sell 'em for profit in May. Wait!! Why not a couple of intakes for magnum heads and LA, never know what I may decide to put a magnum in. Now, you can sit back and wait for the next "Wait"! LOL
j par
Well-hung Member
Now that's not true! In high school we would have called you a goat roping Guru!!!...
...lol...
j par
Well-hung Member
See post number 61....
A little of the wigglin you saw was the whole head moving. I think if the guides were tighter I might have been border line nervous.
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