|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Naw, I was thinking of a big ol' Jimmy hanging out the back!  My wife would object, probably with a .45!  I should of known better being on a inliners site!
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
Poncho, When you have your engine apart will you measure a rod for me?
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Poncho, When you have your engine apart will you measure a rod for me? Sure will. May i ask why or is that top secret
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
I'm trying to find rods that might be longer than the stock GMC rods so I can find a shorter/lighter piston in my 302. I'm having a hard time finding a source of piston and rod specs.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
According to the book the rods are 7.565 center to center.
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
I'll look in my bearing book when I get home tonight Beater and see if that shows anything. And at the same time Poncho can double check on his end.
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Don't understand but it says lower end bearing,inside diameter and length.
1.9998x 1-1/16
2.0008
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
If you have a set of dial calipers, you can get a pretty close measurement on the center-to-center length of the rod. Just measure the distance between the B/E and S/E of the rod. And then add 1/2 the diameter of the B/E and 1/2 the diameter of the S/E to it. And that will be fairly accurate within a couple of thousandths.
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
7.565" is a length of interest and a 2" rod bearing ID is good but I'm not sure if that means that the big end width is 1 1/16. If so I think that is too narrow.
Last edited by Beater of the Pack; 12/16/08 02:55 AM.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
Sorry Beater, my TRW bearing book doesn't have any specs for the straight eight.
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
Here are GMC rod specs that Scott posted earlier.
Small end diameter: .990(same as BBC)
Small end width: N/A(235 is 1.025/30")
B/E housing bore: 2.4563/2.4458(235/261 is the same)
Standard rod crank journal: 2.3110/2.3120
B/E rod width: 1.238/40(235 is same)
Bolt size: 3/8"
Center-to-Center length: 7.000"(235 is 6.800")
Compression Hgt.of 302 piston: 2.375"
The Pontiac looks good except for width. And we don't know about the small end. I just looked in an old Chilton's manual. Not much except that the 8 stroke is 3 3/4 and the 6 is 4". If the 8 rod is 1/2 longer than the GMC what's the 6" It may also be wider and the rod journal is 2 1/8!
Man here we go again hijacking another thread with our GMC crap. Sorry Poncho.
Last edited by Beater of the Pack; 12/16/08 03:31 AM.
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
No worries beater i enjoy this kinda stuff! Anything to help!
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
Poncho,Wouldn't it be great to have an archive on this board that had a complete set of specs for all of our inlines? And, while I'm dreaming interchange with new and old parts and all the sources we can find? It would be a massive undertaking! Beater 
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
That would be awesome beater! Or a resource for how stuff comes apart. I am now trying to figure out how to remove the valves!!
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
One at a time. 1 OL REDNECK I.I.#113
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
One at a time. 1 OL REDNECK I.I.#113
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Well i found a machine shop 300 and all the machine work is done! Now i just got to find the 1300 for the parts!
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
Hey your moving right along. Great! Its cold here and I didn't get my heat in my shop this fall soooo. I'm temporially laid myself off till I get the heat installed or the good LORD wants me to get back to my projects and warms things up a little. Keep up the good work. 1 OL REDNECK I.I.#113
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Aug 2006
Posts: 289
Contributor
|
|
Contributor
Joined: Aug 2006
Posts: 289 |
Beater: You would be surprised to know how much side play you can run with a GMC or any engine. The key is oil flow, and correct grinding of the crank when using a smaller diameter big end rod.(radius) It "appears" the Pontiac has quite a lot less diameter. If the GMC is done by a guy knowing what your plans are and he has the rod and bearing; the ginding can be done to use the narrower rod and maybe stroking it a bit too. This will also make for a shorter/lighter piston. The piston companies I have delt with will make them any way you wish, ie: pin height, pin diameter, ring width, clips/buttons, gas ported, etc. Good luck
216.158 MPH 12-Port 302 GMC on 70% 171.0 MPH 302 stock head on gasoline 7 years later
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
Jimmy Six, Thanks. I'm looking for options in order to get that shorter/lighter and stronger piston. I'm trying to see what is already there. Thanks again!
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
Hey- PONCHO, WE haven't heard from you lately. If your saving for parts thats understandable. Are you going to clean up the valve pockets or ports before putting the engine together? Are you got any other ideas on improvements you'll make? 1 OL REDNECK
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
Im curious also, he is supposed to be sending me things to make for him. I'll be making him some header flanges and a pair of billet finned side covers, and possibly some intake flanges....
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
HEY PONCHO- DON'T YOU LIKE US NO MORE? 1 OL REDNECK
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Sorry guys my internet got shut down because i exceeded my bandwidth!! Things got tight waiting for money for parts. And to get the machining done.
Cnc dude sorry i have not mailed them yet! Actually totally forgot when the web got shut down.
Hope you guys can forgive me!!!!! I have gotten some work done on my Chevy pick up though!
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
No problem, just when ever your ready! Thanks....
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Oct 2007
Posts: 5,015 Likes: 47
1000 Post Club
|
|
1000 Post Club
Joined: Oct 2007
Posts: 5,015 Likes: 47 |
OH my golly gosh are you being such a valuable person to Hughes Net too? They suck but I can't afford 4 miles of wire! I hope things are going well. We'll be waiting when you have news!
"I wonder if God created man because he was disappointed in the monkey?" Mark Twain
|
|
|
|
|
Joined: Dec 2004
Posts: 226 Likes: 1
Contributor
|
|
Contributor
Joined: Dec 2004
Posts: 226 Likes: 1 |
Me too!! We have a lot in common. I always have more expenses than $enses. I think a lot of us are interested in your project because it a different inline. Hoping to hear more when you can. 1 OL REDNECK
DARRELL KRAFT I.I.#113
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Actually beater i'm with wildblue butt probably the same stuff!!
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Well finally moving forward! Works come around and the car club got a shop! Send the block off to machine shop in a few weeks hopefully get the parts in a few weeks!
CNC dude we still on ?
|
|
|
|
|
Joined: Sep 2008
Posts: 3,669 Likes: 42
1000 Post Club
|
|
1000 Post Club
Joined: Sep 2008
Posts: 3,669 Likes: 42 |
Absolutely, whenever you are ready.
Class III CNC Machinist/Programmer
|
|
|
|
|
Joined: Dec 2008
Posts: 27
Active BB Member
|
|
OP
Active BB Member
Joined: Dec 2008
Posts: 27 |
Cool, that really cool!!!! Should send the parts out on the 10th. I still heft to make the templates for the exahust but i should be able to get that done!
|
|
|
|
0 members (),
192
guests, and
47
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
