New 347 Build... '75 Street Queen

[73azbronco]

what muffler you using? I want to know I have a V8, but I'm done with exhaust I cant hear over.

 

[Mountain Ram]

what muffler you using? I want to know I have a V8, but I'm done with exhaust I cant hear over.

A pair offlowmaster 40s dumped out the back corners. Don't get me wrong, when you get on it, they open up. My wife and I were talking to the kids at 65mph and really the tires were as loud as the exhaust...

 

[SC74]

Do you know what the c4 problem was?

 

[Mountain Ram]

Do you know what the c4 problem was?

Unfortunately... No. Speculation is that it likely had some gunk/junk in it that had something stuck. I got it out on the road gagged on the throttle and it started shifting. I did have about 1/2 qt or so too much fluid... When I drained some, the fluid looked good.

I guess we will see how she does this week.

 

[SC74]

I wish my c4 woes would disappear like that! Look forward to seeing it this coming weekend. Your motor build has given me some ideas for my blue 74 street rig. I will have to pick your brain.

 

[boonz28]

Put a tank of 93 in her and drove the wheels off her for a couple of hours... She likes WOT! Trans is shifting good, engine has a lot of power. Put another 75 miles on her- no top, kiddies in the back seat- a great day for cruising.

The exhaust, although louder than I really wanted, is not offensive when driving. Ran right at 190-195 degrees and when sitting at line in the drive thru it only got up to 200. 25psi oil pressure at idle when warm, 50psi when in gear running down the road.

It's nice to have it running again and I love to open the hood to show people the work.

Congratulations on getting the bugs worked out!

You have every right to be proud of that engine and show it off, you should keep doing it every chance you get!!!

 

[Mountain Ram]

I wish my c4 woes would disappear like that! Look forward to seeing it this coming weekend. Your motor build has given me some ideas for my blue 74 street rig. I will have to pick your brain.

Pick away brother... I have asked so many questions of others on here- I need to pay it forward!

Congratulations on getting the bugs worked out!

You have every right to be proud of that engine and show it off, you should keep doing it every chance you get!!!

Thanks- the feeling of accomplishment is awesome...it has me wanting to tackle another big project- maybe a full frame off... Of course I would want to do a Luber which means another EB... And I am not sure the wife would approve!

 

[tasker]

GREAT NEWS DUDE! leaving ithe keys in it by any chance? %)

 

[Nightstick]

New 347 Build... A good day to cruise!

Glad you got things running right, congrats!

 

[Bronco_69]

New 347 Build... A good day to cruise!

Did you use the bc broncos tank? If so what did you do for lines and filter?

 

[BoureeOne]

Cruising around with your family, how it sounds at cruising speed, how it sounds when you get on it, how the tires hummmmm going down the road, are all lies until we see video!!!!!!! Yes, we love pics. Pics are awesome. But video, with sound, of a brand new 347 going down the road....... Sorry, I think I just had an organism......

Scott

 

[Mountain Ram]

Did you use the bc broncos tank? If so what did you do for lines and filter?

I am currently running the stock tank and dual external pumps. Since I will change over to an EFI 23 gallon tank later this year, I used EFI rated 3/8" rubber rubber hose to the pump and to the motor. I made some black stainless fuel line to the motor from the frame rail. I used an off the shelf WIX fuel filter with 3/8" barbs.

Cruising around with your family, how it sounds at cruising speed, how it sounds when you get on it, how the tires hummmmm going down the road, are all lies until we see video!!!!!!! Yes, we love pics. Pics are awesome. But video, with sound, of a brand new 347 going down the road....... Sorry, I think I just had an organism......

Scott

That was funny!! I will see what I can do to get some additional video... or you can come to the Super Celebration this week and see Tasker try to squeeze in it for a ride... ;D

 

[Kegger]

You did right, your 347, I have the same goodies with my 331 it will work out with a custom tune will get the bugs out too mine cranks @ 36 then backs off when wot. The tune will deleat the stuf not needed and input new engine data ci, inj , mass air. jims cam specs rock , took a couple of mustang 347 dudes out truck runs low 12 got a mid 11 out of it very impressed to move 5,500 lbs with a 331. does it all @ 32-36 psi with 1, 225gph external pump. Eddy perf intake 1/2 spacer. Have fun great on the street.

 

[Mountain Ram]

You did right, your 347, I have the same goodies with my 331 it will work out with a custom tune will get the bugs out too mine cranks @ 36 then backs off when wot. The tune will deleat the stuf not needed and input new engine data ci, inj , mass air. jims cam specs rock , took a couple of mustang 347 dudes out truck runs low 12 got a mid 11 out of it very impressed to move 5,500 lbs with a 331. does it all @ 32-36 psi with 1, 225gph external pump. Eddy perf intake 1/2 spacer. Have fun great on the street.

What base timing did you set yours too. I have read a lot today regarding 347s and a lot of guys run them 12-14 degrees BTDC and get better response.

I have to find a place to get it tuned on a dyno. I thought about ordering a tuner, but I'm not sure I want to get that involved.

 

[Luke77]

Just Wondering

First does the 347 keep the same exterior dimensions as the stock 302? Or do the heads make it more like the 351W? I have a 351W I did and it made my hydroboost, ps pump, alternator and hood clearance challenging.

Second, do you think the MSD Atomic Fuel Injection would have worked for your 347? Just wondering since I think my next build I am looking that way. 347 with the MSD Atomic. I know its a lot of money like 2K but every post I read from you it looks cheaper and cheaper.

 

[Bronco_69]

New 347 Build... A good day to cruise!

The base idle will still be around 10 after the tune. Advancing it causes surging issues. The tune can add more total timing to make more power.

 

[Mountain Ram]

First does the 347 keep the same exterior dimensions as the stock 302? Or do the heads make it more like the 351W? I have a 351W I did and it made my hydroboost, ps pump, alternator and hood clearance challenging.

Second, do you think the MSD Atomic Fuel Injection would have worked for your 347? Just wondering since I think my next build I am looking that way. 347 with the MSD Atomic. I know its a lot of money like 2K but every post I read from you it looks cheaper and cheaper.

Exact same dimensions... Except I used tall valve covers to cover the stud mounted rockers. This also required the 1" intake spacer. I have a 3" body lift, but clearance to hydroboost, etc was good. You can get similar heads with pedestal mounts and use standard EFI valve covers to contain that issue.

I don't know the Atomic unit personally, but have read good things about it.

The base idle will still be around 10 after the tune. Advancing it causes surging issues. The tune can add more total timing to make more power.

I will work on getting it tuned next week- off to Super Cel tomorrow AM. I know it's supposed to be 10 degrees, but I also know it's a little rich until it gets tuned. It was recommended to bump timing to 12-14 to get more complete burn. Did that today- no idle issues, but I can't really tell a difference. I am bringing a timing light with me this weekend and will jack with it if I have any issues.

Ready to head south...

 

[Mountain Ram]

The truck is running great and still no video! Been too busy driving the wheels off it this weekend! Can't keep my foot out of the throttle, but the Lokar throttle cable works great!

It's raining at the show today, but there's no place I would rather be!

 

[fatboy]

I took a ride in this with Todd on Saturday and the term "Raped Ape" comes to mind! ;D

Good job on the build.

 

[Stutsmo]

I didnt get to ride in it.... but it did wake me up 2 mornings in a row %)...... Thanks Todd!