1964 GMC 1500 "crustine" semi- build.

[TJ's Chevy]

And here is a comparison of the 3 manifolds.

Stock, 4 down to 2 adapter, and the true manifold.

Surprised at how clean the plugs were to. All that fuel and limited air and burning nice an clean with stock points and a hot coil. lol! Really hoping the extra air will help. It should. Later guys! More updates to come!

[rusty76]

Cool

[rusty76]

Can you explain to me what a magnum intake is? What it came off of and so on. Pretty cool intake.

[Ta2Don]

Awesome job Brotha!!!

[62stepside longbox]

Wow that looks really good, can't wait for a video with it on crustine

[TJ's Chevy]

Originally Posted by rusty76

Can you explain to me what a magnum intake is? What it came off of and so on. Pretty cool intake.

Thanks Rusty! A magnum intake has the larger ports and used the large base two barrel whereas the non-magnum had baffles and a small base two barrel. Magnum intakes would have been on Magnum engines...351M, 401, 478 and others.

Originally Posted by Ta2Don

Awesome job Brotha!!!

Thanks brotha!

Originally Posted by 62stepside longbox

Wow that looks really good, can't wait for a video with it on crustine

Me to!!! Heading out right now to finish it up!

[rusty76]

Ok. So what did these magnum engines come in. You've got my curiosity up. Lol. Thanks

[Classic v6 GMC's]

Nice job on the intake!! x2 on the video.

[TJ's Chevy]

Originally Posted by rusty76

Ok. So what did these magnum engines come in. You've got my curiosity up. Lol. Thanks

The 351M was available in 2500's and up I believe. Then the larger engines like the 401 and 478 would be available in the 4500 and up. Here's a link to the 6066 GMC site...Lot's of info there!

www.6066gmcguy.com/EngineData.html

[TJ's Chevy]

Originally Posted by Classic v6 GMC's

Nice job on the intake!! x2 on the video.

Thanks man!

[TJ's Chevy]

Well guys, Installed everything today...and aside from a few vacuum leaks to fix...Man..I say MAN did opening the plenum make an improvement!!! Sheesh! Has a couple leaks around the intake manifold gaskets so new ones will be here Tuesday. Also has a tiny one between the adapter and manifold. So Wednesday I'm planning on installing the new gaskets and re-sealing it all up. Should run like a champ then! Idling a bit rough and back fires a tad when slowing down which is what it never did before. So, that all should be remedied soon I hope! Later guys! Hope ya'all had a great weekend! Will be making a video soon.

[Palf70Step]

Very nice work on the manifold TJ. You may have uncorked the BEAST!!

[TJ's Chevy]

Originally Posted by Palf70Step

Very nice work on the manifold TJ. You may have uncorked the BEAST!!

Thanks Palf! She's a dern good runner that's fer sure! Just gotta work out them bugs!

[beanstock]

Originally Posted by TJ's Chevy

Yeah, I'm think of either the 500 2 barrel or a quadra jet 4 barrel. I meant that the engine is not original....we ran the numbers and came up with a 67 or later model engine.

Mine is a 64 GMC also and has a 305E also and I know it's original cause my dad bought brand new and gave it to me a few years back.

[TJ's Chevy]

Originally Posted by beanstock

Mine is a 64 GMC also and has a 305E also and I know it's original cause my dad bought brand new and gave it to me a few years back.

Yep! One Easy way to tell is on the back of the intake. There will be a month-day-year stamp there telling when the engine was made. In my case..1967 telling me an engine swap was done...which is cool cause mine is the more powerful one. lol!

[beanstock]

Originally Posted by rusty76

Can you explain to me what a magnum intake is? What it came off of and so on. Pretty cool intake.,A magnum intake has the larger ports and used the large base two barrel whereas the non-magnum had baffles and a small base two barrel. Magnum intakes would have been on Magnum engines...351M, 401, 478 and others.

so,let me see if i understand, when you got the truck it already had the magnum
engine swaped in for the orginal 305 E, then you had the intake milled down for the adatper plate so a 4 bbl could be fitted.??

[Johnny_Lamebridge]

Excellent Intake mods! TJ, you'll be the forum's V6 guru in no time at all.

[TJ's Chevy]

Originally Posted by beanstock

so,let me see if i understand, when you got the truck it already had the magnum
engine swaped in for the orginal 305 E, then you had the intake milled down for the adatper plate so a 4 bbl could be fitted.??

Nope, The engine had the original 305E swapped for a later model 305E. I bought the magnum intake off of a guy with a 351E and modified it and put it on my 305E.

[TJ's Chevy]

Originally Posted by Johnny_Lamebridge

Excellent Intake mods! TJ, you'll be the forum's V6 guru in no time at all.

Thanks Man! I don't know about that. lol But I sure do love these beasts!

[61K10]

For a young man your age you already have the 6's down patt! You remind of myself at your age. It's funny if you are interested in something, all the info remains in your head for some reason lol. Great info TJ--nice work.

Kimble

[TJ's Chevy]

Originally Posted by 61K10

For a young man your age you already have the 6's down patt! You remind of myself at your age. It's funny if you are interested in something, all the info remains in your head for some reason lol. Great info TJ--nice work.

Kimble

Thanks Kimble! Yeah, straight 6's and the GMC V6's have had my interest for awhile. Mainly because you don't see them to often and because you can do mods that require fabrication rather than just purchasing stuff from Summit. Love fabricating; so making my own 4 barrel intake was a blast.

[TJ's Chevy]

Well we have a running and driving video finally! Unfortunately I couldn't do a good acceleration test because I was holding the camera. Much easier to have someone else holding it while driving. lol But it's way better than stock no the less. She tows better to! hauled a fairly heavy load of wood Saturday and she done good! Later guys!

Hey brotha, You mind doing Bomp's video trick for me? lol Or re-sending me the how to? I'm still cornfused. haha!

https://www.youtube.com/watch?v=Gjpfx4YZzoY

[TJ's Chevy]

Well Crustine did another job well done this morning! Hauled a couple loads of fire wood...load on bed and trailer. That 305 V6 pulled with ease. Can't believe people complain about these! And if ya take some time and do a 4 barrel mod and dual exhaust things get even better!

[ChrisDollins]

Love seeing the old trucks put to work! Intake mod is really cool!

Chris

[TJ's Chevy]

Originally Posted by ChrisDollins

Love seeing the old trucks put to work! Intake mod is really cool!

Chris

Thanks Chris!