DragCat

Ok so I'm trying to get all my ducks in a row before the engine swap. I did a search through the forum for headers and came up with 2 possibilities, Dougs D313 and American Racing Headers. I had hoped to re-use my factory exhaust manifolds but ARH told me probably not since the crate probably has "D" exhaust ports. Anyway as most of you know ARH are a tad more pricey, but everything I read there were no "mods" needed and no need to move or shield the proportioning valve. One thing that impressed me was they answer emails on saturday and they make a Monte specific header. Anyway just throwing this out there if someone has an alternate opinion or experience. I will start a engine swap thread when I get started, have learned a lot from the Hemmings article on their Chevelle swap. Not apples to apples but a ton of good info.

Thanks, I'll double check the existing fuel lines. I just assumed 5/16 to the pump. Of course if the holly or crate "suggests" 1/2 I'll do that. I had anticipated some plumbing so I had 2 O'Reily $$ coupons and bought some 3/8 and 5/16 tubing. I still have the receipts so I can swap'm if needed. Damn thats a clean engine compartment, I thought mince was clean.

Thanks Thomas. I did hear back from the supplier and the holly mechanical pump is the 3 port version. Another member PM'd me and said his holly recommended upgrading to a 3/8 line not the normal 5/16 so I may have to do that. Thanks for the answer to my plumbing concern question. Now I feel comfortable if I were to go electric or 2 port mechanical. I'm trying not to upgrade/change too much with the engine swap so other than complete part failure it ran before so no reason it shouldn't run now. As an old guy the main reason I still like carburated engines, air, fuel and spark the thing should run. The old KISS principle. Appreciate all the comments, it was a good day as I learned something new about my Monte , cheers

Yes the new 502's do have the provision for adding a mechanical fuel pump. So what do I do with the return line if I go to a 2 port mechanical or electric ? What i'm saying is I don't understand the return line configuration or how do I delete it from the system. From the Hemmings Chevelle article, not word for word but a summary, with the new crate motors and their roller type camshaft if you use a mechanical fuel pump you need to upgrade the push rod (bronze tip for example. I'll see if I can find the specific article. Found it https://www.hemmings.com/blog/article/surgery-without-scars-3/

I'm dropping in a GM Crate 502. I'm still on the learning curve of the Monte's so I'm not really sure I understand why there are 3 ports on my existing mechanical fuel pump. Also looking at an old OPGI catalog it looks like the holly GM high performance mechanical fuel pump only has 2 ports. So I'm wondering on each difference what has to be modified changed in either scenario. On a side note, from the prior post where Hemmings dropped a GM crate in a Chevelle, I know if I stay mechanical I'll need to get a "special" fuel pump push rod.

Laughing, no I don't want one. But i'm trying not to be stubborn in my old age that I don't listen to suggestions 😮 I'd rather NOT do electrical, just another troubleshooting point of failure IMHO. Just figured someone has done it and will give the pro's and con's. I'll put you in the no column

Not sure if this is the right thread or is should have gone in electrical, oh well. I'm getting my ducks in a row for the winter engine swap and a few people have said I should upgrade to electric fuel pump vs the mechanical. So while i'm not 100% on board I thought i'd at least ask the pros. My first question is all the electric pumps have 2 ports, not like my current mechanical that has 3. So how do you re-plumb for the lost port?

Great looking Monte, glad to see you and the wife enjoying

Great looking Monte! When I was discussing engine upgrades with a friend he just finished a Chevelle LS swap. I know apples to oranges but he said lots of modifications to make it all work. Way out of my comfort level/wheelhouse but looks great when done.

Dylan, I would suggest you get it running before trying to change things. IMHO upgrading to something else without knowing whats wrong isn't going to speed up the process. What have you done so far, what are the issues your seeing?

Great find, good looking Monte too 👍

Went to a car show in Va, 7 First Gen's in attendance, never saw that many in one setting before. Didn't get any pic's as they were packed in tight and tons of people. Did spend some time talking to 2 owners about Monte's which is always good. No 70's nor SS's but i'm not going to complain, was a good day 😎

Saw this while running around the web this am, thought i'd share.

I'm probably going with the Summit rad mentioned in the below thread when I do my engine swap. But here is the thread with some other options. https://www.firstgenmc.com/forums/index.php?/topic/19770-aluminum-radiators/

Thanks, the only "yellow letter tires" I was aware of were those Nascar series. But I hate to assume anything these days. Again nice looking Monte

Hope everyone up north fared well, I'll admit I was a little stressed on this one but was lucky when it turned north.

Congrats Lorenzo ! I gotta replace mine when I get back in town.

Great shots/photos Aaron, what are "yellow letter" tires?

Willie, since you like it and if your not planning on entering pebble beach leave it on. I'd just say it was a special order emblem if anyone asks which isn't s stretch since you'd have to go to a buick parts counter to get one 😁

No, was never a Stones fan, but when they announced it was their last tour I figured I had to at least go see an iconic band.

Hey Antoine, looks like we are breathing a little easier today with the tracking updates. Thoughts and prayers for everyone else up the coast or wherever Mother Nature decides to spew her wrath. Ive got 80% of my shutters up, I'll do the rest tomorrow just in case. Oh and Antoine, I saw the Stones in San Diego on their FIRST this is our last tour 😲

Great pix, thanks for sharing! I really dig the green Laguna.

Bruce, according to my sales paperwork the 70 came with either G78-15 or G70-15 tires .

Hi Helen, welcome to the insanity 😁 You have just ventured into the keep it stock or upgrade for whatever reason cloud 😯 I can't speak for your winter conditions, but on your roads i'd want more rubber on the ground. Unless your at Pebble Beach I doubt anyone will question your going to a 60 series, I'm running 225-60R-15's. The original stock G70-15's had a tread width of 6.70 and a section width of 8.50. In contrast my 225's have a TW of 7.5 and a SW of 9. Didn't want to go all tech on ya just some data to ponder. There are lots of handling upgrades but ya have to have some good sneakers on our heavy Monte's.

Ditto on the kudos to all involved, its always a good day when nobody sees what your doing in the background 👍