The Stovebolt Page Forums Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Stovebolt Supporter!
Indianapolis

Fabrications

Talk to Randy Domeck

See what they

can do

for you
!


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

Stovebolt Calendars

Some New
Some Vintage
Many in Production

Check for details!

Will be updating all year around!


Who's Online Now
6 registered members (AlpineBolt, Mike Attewell, Dusty, TPR57C, Chuck53, Richard H.), 66 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums47
Topics109,534
Posts861,153
Members40,457
Most Online940
Apr 5th, 2017
Image Posting Policy
Previous Thread
Next Thread
Print Thread
Page 3 of 5 1 2 3 4 5
Re: 283/302 small block installation [Re: Jim Sears] #1238432
Mon Oct 09 2017 04:12 AM
Mon Oct 09 2017 04:12 AM
H
Hotrod Lincoln  Offline
Boltergeist
Joined: Feb 2004
Posts: 16,064
Dellrose, TN
Modify the bellhousing crossmember, but don't remove it altogether. It also serves as a brace for the rear spring pivots and there will be some nasty flexing of the frame if it's not there. A better way to handle the transmission clearance problem is to fabricate a bolt-in center section that drops a couple of inches to make room for the torque converter housing.
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: 283/302 small block installation [Re: Jim Sears] #1238459
Mon Oct 09 2017 01:45 PM
Mon Oct 09 2017 01:45 PM
J
Jim Sears  Offline OP
Shop Shark
Joined: Jan 2013
Posts: 1,475
MA
I could have phrased that better. The bell housing cross member is not now nor would be later used For Mounts.
Right now the transmission clears it by fractions of an inch. moving the engine/transmission assembly forward would actually make it better.

Re: 283/302 small block installation [Re: Jim Sears] #1238472
Mon Oct 09 2017 02:48 PM
Mon Oct 09 2017 02:48 PM
G
Grigg  Offline
Master Gabster
Joined: May 2005
Posts: 9,292
Lexington, VA
The original bellhousing cross member added considerable stiffness to the frame at the rear spring hangers. With our without any mounts it it's a good idea to have a cross member at the front spring rear most hangers.

GMC 400 series didn't have the same cross member and engine mounts as the smaller trucks, instead they used a large U shaped channel iron bolted outside the frame just behind the spring hangers.
See attached pictures of this 400 series cross member adapted to a smaller 2 ton GMC. I can't find a picture of one as fit originally in the 400 series GMC.

Attached Files

1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-
Re: 283/302 small block installation [Re: Jim Sears] #1238505
Mon Oct 09 2017 05:02 PM
Mon Oct 09 2017 05:02 PM
H
Hotrod Lincoln  Offline
Boltergeist
Joined: Feb 2004
Posts: 16,064
Dellrose, TN
Originally Posted by Jim Sears
As far as power goes, the client isn't going to be happy until we have 327 with 300 - 325 HP, so I'm resigned to that. At least it will bolt up to the 700R4.


I've been in your shoes many times- - - -dealing with a demanding customer who has no idea what he's asking for, or if the resulting project is going to do what he wants it to do. Putting a hotrod V8 in a situation more suitable for a low RPM high torque inline six is a really good example of that kind of thinking. It seems your guy would be better off with a 292 with a few torque-improving modifications than any other option, but explaining the facts of life to a customer with his mind already made up is an exercise in futility!
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: 283/302 small block installation [Re: Jim Sears] #1238871
Wed Oct 11 2017 09:34 PM
Wed Oct 11 2017 09:34 PM
S
sstock  Offline
Shop Shark
Joined: Jan 2013
Posts: 645
Gig Harbor, WA
Guy in facebook in the Chev GMC 47-54 forum has a 305cu in V6 just pulled out of his truck runs great $500. Not a bad way to go either IMHO


1953 Chevrolet 3100
Re: 283/302 small block installation [Re: sstock] #1238956
Thu Oct 12 2017 03:34 PM
Thu Oct 12 2017 03:34 PM
J
Jim Sears  Offline OP
Shop Shark
Joined: Jan 2013
Posts: 1,475
MA
That's in interesting idea.
I believe, however , the decision has been made. The client is ordering a 325hp, 327 crate engine.

Re: 283/302 small block installation [Re: Jim Sears] #1238958
Thu Oct 12 2017 03:59 PM
Thu Oct 12 2017 03:59 PM
H
Hotrod Lincoln  Offline
Boltergeist
Joined: Feb 2004
Posts: 16,064
Dellrose, TN
I hope he's got enough gears to keep it wound up all the time. That HP happens only at wide open throttle, high RPM, and the torque band is very narrow. He's putting a Kentucky Derby thoroughbred in a mule pulling contest!
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: 283/302 small block installation [Re: Jim Sears] #1238967
Thu Oct 12 2017 04:56 PM
Thu Oct 12 2017 04:56 PM
5
52Carl  Offline
Master Gabster
Joined: Mar 2010
Posts: 5,481
Virginia
The customer is always right. Uninformed, hard-headed, stubborn yes, but still always right.
Good call on your part for having your client purchase the crate motor that HE wants. Its all on him now.

Re: 283/302 small block installation [Re: Jim Sears] #1239026
Fri Oct 13 2017 04:22 AM
Fri Oct 13 2017 04:22 AM
J
Jim Sears  Offline OP
Shop Shark
Joined: Jan 2013
Posts: 1,475
MA
True about the power curve. It will probably put out 200 in the normal driving range, twice what he has now and all the truck needs anyway.

Re: 283/302 small block installation [Re: Jim Sears] #1239086
Fri Oct 13 2017 04:42 PM
Fri Oct 13 2017 04:42 PM
H
Hotrod Lincoln  Offline
Boltergeist
Joined: Feb 2004
Posts: 16,064
Dellrose, TN
Build the drivetrain strong enough to survive when somebody winds it up and bang-shifts into the next higher gear with a heavy load onboard. A machinist friend had a piece of 4" driveshaft tubing hung up over his lathe with 3 full turns twisted into it after a driver revved up a 425 HP Caterpillar 3406 Diesel and sidestepped the clutch- - - - -with the fully-loaded rig buried up to the hubs in a muddy rice field! The shaft looked like an hourglass!
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!
Page 3 of 5 1 2 3 4 5

Moderated by  KCMongo 

Home | FAQ | Forum | Swap Meet | Gallery | Tech Tips | Links | Events | Features | Search | Hoo-Ya Shop
Powered by UBB.threads™ PHP Forum Software 7.6.1.1