Author Topic: 70 Hemi Road Runner Street Monster build  (Read 1638 times)

Offline YellowThumper

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Re: 70 Hemi Road Runner Street Monster build
« Reply #30 on: June 05, 2019 - 12:58:11 am »
From a build perspective again. You have a tilt front end. The obvious expectation would be to see a motor plate. Perfectly at home.
Yea that car was stunning everywhere. It also had air ride. I have a few more pictures but even with just a screenshot off my phone they were too large to post. Got that one (3) sized but my attention span ended further attempts.

Good luck with it.
On a side note I am finally starting on my Falcon. Have a reason now to finish it. Brother who gifted it to me wants to buy it back done...lol.
Removing the warning labels one at a time.
Nature will take care of the rest.




Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #31 on: June 05, 2019 - 11:48:11 am »
My thoughts exactly, open that tilt hood and I would expect to see a motor plate I think. I am researching the limiter rods currently and what that is about.

On the phone/picture issue; not sure what platform you are using but what I do with my iphone, is that I email the pictures from my phone to an email account I can access on my comp. When I do this, it asks me what size I want to use, I pick medium which always allows them to be up loaded here.

That car is definitely beautiful. I wonder if the owner built it or had it built.

Good news on the Falcon, I need to get someone to pay me to build a car for them...
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline YellowThumper

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Re: 70 Hemi Road Runner Street Monster build
« Reply #32 on: June 05, 2019 - 12:11:38 pm »
All done on my phone. S8. Yes, I will send email to myself and scale as that is sent. Problem is (probably a glitch) I can only do it once. With first I get option but then no longer an option. On the other site I do it all from laptop for organizing.
Removing the warning labels one at a time.
Nature will take care of the rest.

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #33 on: June 05, 2019 - 12:20:03 pm »
Thats a bummer, I can send probably 4-5 pictures per email which I drop into a folder and then pull them out of the folder to post online. This is the life we lead these days  :bigsmile:
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #34 on: June 06, 2019 - 07:41:23 pm »
I haven't gotten back to the trunk floor but I have gotten the trunk lid repaired. As you can see in the pics, whoever tried last time failed miserably.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #35 on: June 06, 2019 - 07:43:06 pm »
Some more pics. Certinaly not perfect, but with a little skim coat of bondo, some sanding it will look ok.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline jimynick

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Re: 70 Hemi Road Runner Street Monster build
« Reply #36 on: June 06, 2019 - 10:40:38 pm »
Looks good, nice work!  :cheers:

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #37 on: June 06, 2019 - 10:51:44 pm »
Thanks, I almost forgot how much fun welding rusty metal is...  :swear:
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #38 on: June 08, 2019 - 12:26:04 am »
Got some parts in and decided to mock up the oil system. This lead me to began to modify the oil pan for the pick up. At first I thought I would be slick and just punch a hole in the pan, well I discovered that since the bottom edges of the pan are rolled, that was not going to work, so we went to plan B which is to weld in a flat plate so the seals have something flat against to seal to.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #39 on: June 09, 2019 - 01:59:09 pm »
Finally got the pan sorted out, didn't turn out as clean as I had hoped but it will work. I am still relatively inexperienced at TIG welding so it is a bit of a challenge but at least with TIG I know it is sealed.

I installed my rear main seal retainer in the block (hate those things), but while doing so I noticed a date and a name stamped into the left rear pan rail. I believe the date is when the short block was originally built and I am thinking the name is from someone who once owned the motor, most likely stamping it so that if it was at a machine shop they would be able to ID it.

I need a timing chain cover for this motor and I have what I thought was a 440 out of a motor home, well after tearing it apart I discovered that the motor is actually a 413 which they used up until 79 in motor homes (who knew..). The block would be a good donor for a stroker or something, I will hang onto it as garage art I guess (gives me a place to rest my unused 440 6 pack intake  :bigsmile: Interesting thing with the 413, there are no numbers stamped on it anywhere to indicate displacement. The front pad has what looks like a number 1 and perhaps a 0 stamped onto it but far apart. There not any numbers on the pan rail (where the partial VIN would normally be). The casting date is there (7-10-72), so this had to have been in a 1973 model motor home.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #40 on: June 12, 2019 - 12:03:28 am »
Ive managed to get the vast majority of the trunk out finally, definitely was a PIA. After looking at the car closer, I discovered that there was some damage on the left quarter, it is right at the end of the quarter, looks like a shopping cart hit or something, but the last body guy decided to fill it with bondo rather than pull it out, so now there is something else to fix...

In the mean time I am trying to figure out what cam I have for the engine, I was told it was a hydraulic cam but now I am not too sure. Of course Mopar wasn't smart enough to put a part number on it so there isn't any way of knowing. I tried to measure it but that didn't come out. I am thinking of getting a tool to mock it up and check or I might Vee blocks to check it.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 73440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #41 on: June 12, 2019 - 04:22:26 am »
I have one of those 413 motor home engines along with the 727 with emergency brake attached.
Not sure what to do with it also. Was thinking maybe into a bike frame .
Supposedly no good pistons are available .
Has the water pump connection to the heads for cooling .
67 440
72 413 / 727
73 Barracuda w/ 68 440
65 Plymouth Fury III , I sold ,was my Nana's car till 92 yo.
51 Ford F1 239 Flathead, flipped , new cab , stolen
59 BelAir 283 4 door original patina
01 Chevy van 419,000 miles
06 Crown Vic Police Interceptor
75 HD Ironhead converted to RH shift
73 HD Ironhead
82 HD Ironhead
74 Norton 850
80 HD Shovelhead
80 Husqvarna WR 390

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #42 on: June 12, 2019 - 10:46:11 am »
Yep, that is the same motor. Mine is seized up a bit, well actually a lot. The motor was left outside without an AC and got a lot of water into it. Its not horrible but would definitely need a complete overhaul to include being bored out. I am tossing the heads and keeping the rest as parts, trading material, or perhaps a donor for something. I think the block would make a good donor for a stroker motor.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #43 on: June 18, 2019 - 12:17:39 pm »
Not a lot has gotten done on the car lately, had company over until yesterday and I embarked on a new knife making project as a gift for a friend's daughters HS graduation.

I have been trying to determine what cam I have, its definitely a Mopar Performance Purple cam but which one it is seems to be illusive. I have measured the lobes and bases and made a cradle and used a digital dial indicator. The problem is that Mopar lists valve lift not cam lift so they are calculating valve lift using a rocker ratio. I am being told that the Hemi uses a rocker ratio of 1.5 to 1.56 which makes this a little more confusing. I will mock it up in the engine and check it there as well, but right now I am thinking it is a .572/.557 solid lifter cam.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)

Offline 70chall440

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Re: 70 Hemi Road Runner Street Monster build
« Reply #44 on: June 19, 2019 - 12:25:46 pm »
Well I think I have got it figured out, I believe the cam is P4529344 which is .572/.557 (valve or gross lift) and a solid lifter cam. Next question is whether or not this is a good cam to use in this engine or not.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)