Car Forums  

Go Back   Car Forums > Vehicle Specific > Classic Cars
FAQ Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-12-2003, 12:24 AM   #16
vwhobo
CF's Anal Orifice
 
vwhobo's Avatar
 
Join Date: Feb 2003
Location: Redneck Hell
Posts: 8,630
Quote:
Originally Posted by RoadRunner73
a pig eh? thats funny, i was just checkign through my hot rod magazine and theres a 360 magnum here that produces almost 400hp and 420lb-ft of torque thats more than the 440 and it will probably fit on the stock mounts right?

It's a small block. If the car originally came with a small block it will drop right in.
__________________
Thanks for the pic, jedimario.

"Everybody believes in something and everybody, by virtue of the fact that they believe in something, use that something to support their own existence."
Frank Vincent Zappa, 1940-1993

vwhobo is offline   Reply With Quote
Old 08-12-2003, 12:36 AM   #17
RoadRunner73
CF Newbie
 
Join Date: Aug 2003
Posts: 9
well the car was a 340 small block im guessing and a 360 is a small block its got a lot of hp and torque im just hopin it isnt like $5000 american lol cuase we in canada gte bad exchange rates tobad it wasnt like 20 or so years ago when the canadian dollar was stonger than the american



MAGNUM 380 HP 360 V8 ENGINE ASSEMBLY



P5249499 Magnum 380 hp 360 Engine Assembly $ 3,799.00



1.925" Intake/1.625 Exhaust Valves .501"/.513" lift 288-2920 Hydraulic Roller Camshaft
M1 Single Plane Intake Manifold Special Valve Springs Dbl Roller Timing Chain
Electronic Distributor Package MP Cast Valve Covers Oil Pan



should this be suffcient i would hope so its pretty expensive

and another question i have is how do you increase torque?
RoadRunner73 is offline   Reply With Quote
Old 02-13-2004, 02:15 AM   #18
73340rr
CF Newbie
 
Join Date: Feb 2004
Posts: 1
To 73 roadrunner

73340RR,All mopar small blocks are not the same. The motor mounts are a little different. There is a place where you can get the right ones. And you can get them for a big block you dont need to change the k-member. I own a 73rr with a 340. vwman doesn't now what he is talking about. He may know chevy but he doesn't now mopar.
73340rr is offline   Reply With Quote
Old 02-13-2004, 02:26 AM   #19
Vaspier
CF Newbie
 
Join Date: Feb 2004
Location: Canada
Posts: 54
actually mopar engines like the 318, 340, and 360 are the same things really, same mounts and size, just bored differently and with different parts. i got a 69 dart, came with a 273, right now its got a 318 fits perfectly, if i wanted to i could put in a 360, which i will most likely do when i have the cash. thats why mopars are so great, you can drop pretty much any of their engines into your car without much trouble. i think i got a link for you road runner, let me find it here... http://www.mopartsracing.com/parts/blocks.html check that stuff out if you wanna see some american prices for engines. i really want that 380 hp 360 there, i think thats the same one that you were talking about in a few post back. hope it helps you.
Vaspier is offline   Reply With Quote
Old 02-13-2004, 03:42 AM   #20
vwhobo
CF's Anal Orifice
 
vwhobo's Avatar
 
Join Date: Feb 2003
Location: Redneck Hell
Posts: 8,630
Quote:
Originally Posted by 73340rr
73340RR,All mopar small blocks are not the same. The motor mounts are a little different. There is a place where you can get the right ones. And you can get them for a big block you dont need to change the k-member. I own a 73rr with a 340. vwman doesn't now what he is talking about. He may know chevy but he doesn't now mopar.
All small block Mopars are easily interchangable... Except the 318 poly-block and the later Magnum engines have slightly different bosses on the block. And as you already know you can get conversion mounts. In my book that makes them interchangable.

As for the SB to BB conversion, yes you can do it without changing the k-member but... You have to do substantial fabrication, so why not just swap the k-member? Yes sweetie, I do know Mopar.
__________________
Thanks for the pic, jedimario.

"Everybody believes in something and everybody, by virtue of the fact that they believe in something, use that something to support their own existence."
Frank Vincent Zappa, 1940-1993

vwhobo is offline   Reply With Quote
Old 09-18-2004, 11:49 PM   #21
aerodynamic
CF Newbie
 
Join Date: Sep 2004
Posts: 1
About that motor swap...

Howdy...

Did a swap in my 74 Runner years ago, 318 to 440. At that time, I had to sawzall the frame brackets and relocate them to stick the big block in.
Now I believe YearOne has direct mounts for that purpose, no k-frame swap
required. Check it out!
aerodynamic is offline   Reply With Quote
Old 07-25-2006, 10:04 PM   #22
MoparMedic
CF Newbie
 
Join Date: Jul 2006
Posts: 1
RoadRunner73, after reading the replies from vwhobo I must say that I agree with him 100%. If you don't think that money will be an issue, than perhaps you should go to the Barret Jackson Auto Auction and buy a 1971 Plymouth Hemi Cuda convertible. In fact, if money isn't an issue pick one up for me too! I found myself in a very similar position to yours a few years ago. I purchased a solid '73 Road Runner from a local junkyard. The car required a complete restoration. The body looked rough, but was not rusted through the quarters or floorboards, making it an extremely solid car and good resto candidate. The car had a 318/727 combo which I felt needed to be exchanged for something a bit bigger. At the time I was 15 and was working 3 part time jobs just to get money to buy parts for my car (I had been saving since I was 12). In today’s twisted Mopar society, it seems that if you don't have a big block, your car isn't worth anything. I looked at some early Hemi's and a 400 CID big block all of which would have required a rebuild, plus the major suspension mods that you have already inquired about. I ended up with a 340 CID small block (that's what the car originally had). I felt that with the right combination of parts a lightweight 340 with big block horsepower would be the best option. I was not fortunate enough to obtain a 340 with X heads (something that deserves consideration for your build), but the J heads with lower compression ratios were fine for my build. For approximately $5000, much more than I wanted/expected to spend on the engine, I had my engine completely rebuilt, magnfluxxed, bored .030 over, new pistons installed, new external parts installed, rebuilt heads, a custom built low profile aluminum intake manifold, B&M 144 roots type supercharger, and 650 cfm Demon Race Carburetor. According to the engine dyno the setup is worth 425 hp on pump gas. The engine can use racing fuel, which I prefer, and if the belts are adjusted on the blower the hp can be increased. The monster 340 just barely fits underneath the road runner hood bulge, but from the outside of the car it appears strictly stock. Don't just blow off the idea of a small block yet, you can do a lot more for a lot less $$$ if you use a 340 or 360. Below is a picture of my engine after I got it back from the race shop. By the way, I'm now 20 and still working to finish the car. Money and time are the two biggest issues that you have to overcome in any restoration, so keep these in mind when you consider what kind of build you are going to do.

MoparMedic is offline   Reply With Quote
Old 07-25-2006, 11:54 PM   #23
dodger65
I know more than Wally...
 
dodger65's Avatar
 
Join Date: Apr 2005
Location: U.S. - Midwest
Posts: 2,117
...damn near 2 years later...

here is a slight clarification on some points, though. in case someone reads this looking for info...

318 polys have the same motor mount bosses as the wedge 318, the blocks are very similar

iirc, 360's have a slightly different bracket between the block and the motor mount on the passenger side. i think it's a matter of one bolt hole that isn't present on the 318/340 mount...

if switching from a 273/318/340 to a 360, you will need to add weights to the converter (providing someone didn't internally balance the 360)

schumacher makes (and made in '03 and '04, i'm sure) conversion mounts that they could facilitate putting a b or rb motor in damn near anything w/o changing the k-frame. trans location shouldn't change...
__________________
"Everyone is someone else's weirdo"

dodger65 is offline   Reply With Quote
Old 07-19-2008, 09:57 PM   #24
ryth2692
CF Newbie
 
Join Date: Jul 2008
Posts: 1
roadrunner 340

sweet pics dodger65
ryth2692 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Forum Jump



All times are GMT +1. The time now is 05:56 AM.

Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © 2002 - 2011 Car Forums. All rights reserved.