The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Some light reading


ENTERTAINING ADVENTURES

In the Stovebolt Reading Room

A little light reading
OR
Epic stories of old tin hunting!

Stovebolt Site Search
 
Old Truck Calendars
Months of truck photos!
Nothing like an old truck calendar

Stovebolt Calendars

Check for details!


Who's Online Now
17 registered members (dschmit, bluesman, baldilocks, Cosmo, 66flea, 1 invisible), 384 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums48
Topics117,367
Posts938,490
Members42,915
Most Online1,229
Jan 21st, 2020
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 4 of 5 1 2 3 4 5
Re: 1937 216 rebuild [Re: John Dlugos] #1342380 Thu Jan 16 2020 01:55 AM
Joined: Feb 2004
Posts: 19,687
H
Hotrod Lincoln Online
Boltergeist
I fat-fingered a key and erased a long post- - - -let's try again. I haven't encountered any vibration problems when swapping to aluminum pistons. An inline six crankshaft is inherently well-balanced due to the exact 120 degree spacing of the counterweights, and stovebolts don't spin fast enough for any real reciprocating weight concerns to develop. The cylinder head design pretty much restricts RPM to slightly over 4000, even on engines with dual carbs and Fenton headers. It's like joining two pieces of heavy chain together with a paper clip.

I'm working up a stroker 235 engine, using Carrillo NASCAR tool steel connecting rods and a big stroke increase, from 3 15/16" to 4 3/8", for a total displacement of 266 cubic inches. Since the connecting rods are much lighter weight than original, I'm planning to set up the crankshaft in my lathe and turn about 1/2" off all the counterweights, and then have my buddy with a crankshaft balancer spin it up to check for vibration. I'm doing a bunch of other modifications to that engine, all hidden inside. It's going to look bone stock from the outside. I'm also working on a version of the same rotating assembly that will fit into a 216 block if everything goes right. That will require changing the width of the thrust bearing area of the 216 block and main bearing cap to accept the 235 main bearings. That one's still on the drawing board, but a 266 with full pressure lubrication that looks like a 216 might be a real sleeper!

Lots of 216's have been modified with 235 pistons, with no problems with vibration. Stock-bore aluminum pistons instead of 60 over should give no trouble at all. Have fun!
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 1937 216 rebuild [Re: John Dlugos] #1342384 Thu Jan 16 2020 02:22 AM
Joined: Mar 2019
Posts: 526
G
glenns towing Offline
Shop Shark
Interesting readings. What is the plan on flywheels, trans , and rear diffs on this project?

Re: 1937 216 rebuild [Re: John Dlugos] #1342386 Thu Jan 16 2020 02:48 AM
Joined: Feb 2011
Posts: 883
R
rickmg Offline
Shop Shark
I have 1940 milk can lifters and the shorter push rods in my 1939 216 engine. Everything else is stock 1939 including the head. The engine runs very well and quiet.

Rick

Re: 1937 216 rebuild [Re: glenns towing] #1342388 Thu Jan 16 2020 03:02 AM
Joined: Feb 2004
Posts: 19,687
H
Hotrod Lincoln Online
Boltergeist
Originally Posted by glenns towing
What is the plan on flywheels, trans , and rear diffs on this project?


The prototype(s) will probably end up on a run stand on a trailer, with my water brake dyno hooked up to a stock bell housing and clutch. After a few demonstration runs, my grandson might end up with more orders than both of us working together can fill! I wonder how many guys would like to have an engine compartment that says "I'm a 216" and enough torque to pull a 3.55 rear end at 70 MPH?
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 1937 216 rebuild [Re: John Dlugos] #1342413 Thu Jan 16 2020 12:49 PM
Joined: Aug 2005
Posts: 8,828
Tiny Offline
Global Mod
I used aluminum pistons in my '38 with no issues. In fact it's smoother.


Save a life, adopt a senior shelter pet.
The three main causes of blindness: Cataracts, Politics, Religion.
Name your dog Naked so you can walk Naked in the park.
Re: 1937 216 rebuild [Re: John Dlugos] #1342427 Thu Jan 16 2020 02:46 PM
Joined: Dec 2019
Posts: 38
J
John Dlugos Offline OP
Wrench Fetcher
Thanks for the input Jerry and Tiny

Here's the plan
37 1 1/2 ton
37 tooth ring gear don't believe original.stamped 746i on housing
10" stepped clutch and flywheel from 37 motor
Original driveshaft and 4 speed non sync transmission
38 nos block w standard flat aluminum pistons
1950 head with its pushrods, rocker arms, and adjustable lifters ( I think)
Pertronics electronic ignition
Carter w1 carb
Original manifolds is usable
Using clutch and flywheel on left in picture

Attached Files
IMG_1738.JPG (173.67 KB, 88 downloads)
IMG_1737.JPG (140.93 KB, 88 downloads)
Last edited by John Dlugos; Thu Jan 16 2020 05:02 PM.

John
37 Chevy 1.5 ton
17 Dodge Brothers Roadster
23 Dodge Brothers Touring
23 Dodge Brothers Coupe
73 Plymouth Scamp 2 dr
Re: 1937 216 rebuild [Re: John Dlugos] #1342429 Thu Jan 16 2020 03:11 PM
Joined: Feb 2004
Posts: 19,687
H
Hotrod Lincoln Online
Boltergeist
Good stuff- - - -EXCEPT- - - - -run, do not walk away from that Pertronix ignition! If you do a search on this site you'll find that there's about a 50/50 split of opinion about Pertronix. Would you choose to go to a doctor if half of his patients died suddenly? The Langdon's "Mini-HEI" uses GM original HEI parts which are available at any corner parts store, not proprietary electronics from who knows where, in a distributor housing modified to fit the stovebolt engine. I build the same type of system in my own shop, but most stovebolters don't have the machine tools necessary to make the housing fit. The large-diameter HEI from the electronic ignition 250 and 292 egines is a much closer fit, and it might be a little less spendy than the mini distributor.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: 1937 216 rebuild [Re: John Dlugos] #1342434 Thu Jan 16 2020 03:43 PM
Joined: Apr 2005
Posts: 8,140
Justhorsenround Offline
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
X2 šŸ› 


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
ā€˜65 Chevy Biscayne 4dr 230 I-6 one owner (Iā€™m #2)
ā€˜39 Dodge Businessmans Coupe


"I fought the law and the law won" now I are a retired one!
Support those brave men/women who stand the "Thin Blue Line" and lock up those on the wrong side of that line.

Re: 1937 216 rebuild [Re: Justhorsenround] #1342446 Thu Jan 16 2020 05:05 PM
Joined: Dec 2019
Posts: 38
J
John Dlugos Offline OP
Wrench Fetcher
Good advice thanks


John
37 Chevy 1.5 ton
17 Dodge Brothers Roadster
23 Dodge Brothers Touring
23 Dodge Brothers Coupe
73 Plymouth Scamp 2 dr
Re: 1937 216 rebuild [Re: John Dlugos] #1342685 Sat Jan 18 2020 12:53 PM
Joined: Dec 2019
Posts: 38
J
John Dlugos Offline OP
Wrench Fetcher
Cleaned up cylinders yesterday. Will finish hone when have pistons.
Mains checked out .002- .0025 no taper with plastigauge.
I'm puzzled on rods. Torqued assembled and checked with bore gauge.
All were to tight ranging from negative .002 to .003.
Some had 3 shims some had 1. One rod had 3 on one side and none on other.
This was a assembled nos shortblock when I bought in 2011. Still had cosmoline on it. I disassembled in 2011 and put on shelf till now.
Seems to me rods should have been adjusted at factory. ?
I suppose I could have lost some during disassembly back then but on every rod?
Plan is to go back through and start with 3 shims on each side on Monday.
Thanks to all for suggestions and recommendations, John


John
37 Chevy 1.5 ton
17 Dodge Brothers Roadster
23 Dodge Brothers Touring
23 Dodge Brothers Coupe
73 Plymouth Scamp 2 dr
Page 4 of 5 1 2 3 4 5

Moderated by  Woogeroo 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.7.3