70 (496) Build Thread - Chevelle Tech
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post #1 of 56 (permalink) Old Jan 29th, 12, 10:25 PM Thread Starter
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Eric
 
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70 (496) Build Thread

I debated doing a build thread but why not.

Some time back in November I started looking at swapping out my YearOne Crate 350 for something with a little more, "umph." I talked to a few sources about buying another crate motor, discussed having a motor built by various engine builders, know someone with a 427 just sitting in the shop waiting for a home, etc. I even considering doing the LS thing for a while but the more I thought about it the more I realized a 70 Chevelle NEEDS a big block. Fortunately timing was on my side because at the same time I was doing my research Bill (Billscamino) was doing his 50 thousandth engine swap and was preparing to pull his nearly new 496 from his 67 sedan. I put my 350 on Craigslist and around 2 weeks later I was pulling the crate motor which was headed out to Texas to find a new home in a 70 something Chevy truck.

Fast forward a few weeks and Bill dropped his short block off and the ordering frenzy began.

I did what everyone in my shoes should probably do and that was contact both Mike Lewis and Chris Straub. The rotating assembly was already supplied by Chris and consisted of a Probe forged crank & flat top pistons. Chris also supplied me with the balance & flex-plate while Mike was able to put a nearly complete top-end kit together for me (would have been complete but I just didn't think to order a few things.) We decided on AFR 290s and had them milled down to 104cc as well as a port-matched Air Gap intake. Patrick at Prosystems was contacted and a carb order was placed.

In building this engine I told Mike I had a few requirements. I wanted a big block that had enough vacuum to run power brakes with the A/C on in the Georgia summer, I wanted it to be a hydraulic roller for longevity & maintenance purposes, wanted to be in the mid to high 600 horsepower range while maintaining as much of that big block rumble as possible. He had a 240/244, 632/632, 110LSA cam ground which should put me around 650 horsepower I believe.

Here is the rest of the build list
Doug's D316 Headers
MSD Pro-Billet HEI
Morel Lifters
Mike Lewis Push rods
Carter Mechanical Fuel Pump
Magnaflow 3" x-pipe system
& about 150 other things on a long spreadsheet.

Fortunately, or not for my checking account, this was not just to be a simple motor swap. Along with the motor coming out I decided to upgrade the 14" SS wheels with new 15" Specialty Wheel SS style 15x10 & 15x7s. I mounted some MT Sportsman S/T on all 4 corners (295/50 on the back). But wait, that is not all. I already have UMI tubular trailing arms (upper & lower) so I decided I wanted to replace my worn out front A-Arms with the Tubular Upper & Lower A-arms (with tall ball joints), along with all new spindles & brake hardware. I always planned on using 15" wheels so larger brakes were out of the question but I did purchase new Wilwood D52 dual piston calipers and SSBC Big Bite Cross Drilled rotors. I removed both front & rear UMI sway bars and in their place went an H&R Parts n Stuff rear Anti Roll bar. Going to wait and see if I need to put the front back on but the plan is to leave it off. Wrapping up the suspension will be all new cross link, tie rods, idler arm & Jeep Grand Cherokee steering box.

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA

Last edited by fleming23; Jan 29th, 12 at 10:44 PM.
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post #2 of 56 (permalink) Old Jan 29th, 12, 10:28 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Old motor sitting on picker, ready to go to new home

Engine bay after getting car back home. It needed some attention



New rear tires sitting next to old wheels (295 vs 225)


Stripping the firewall down to clean it up a bit. Not doing a concourse correct, just want it to look better.

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #3 of 56 (permalink) Old Jan 29th, 12, 10:32 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread



I battled with this damn thing for over an hour. Ended up prying it off far enough so I could cut the broken bolt out.


Firewall cleaned up, painted and going back together


New rear tires mounted & balanced on 15x10 SS style wheel


Rear wheels mount on car & ARB installed!


Front tires mounted & installed


Side shot of 15x10s

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #4 of 56 (permalink) Old Jan 29th, 12, 10:36 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

While working on the Anti Roll bar I realized how bad my fuel tank looked and decided to drop that and replace with a new Spectra Premium unit. Was hoping for a build sheet but no such luck


New calipers waiting to go on



Car sitting back on the ground to check for clearance. Everything appears to be good to go!


Last week the prep began on the short block

Unfortunately the short block had to be disassembled as we have PTV issues with the AFRs and Flat Tops (which surprised everyone.)

Table full of parts waiting to go on the motor as soon as we get the pistons back from being milled



70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #5 of 56 (permalink) Old Jan 29th, 12, 10:37 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

And currently

Had Terry Cowger make me some new decals/magnets for my air cleaner


This weekend I ordered another set of 15x10 SS wheels (after much deliberation and came VERY close to ordering a complete set of Billet Specialty Street Lites) and some tires to be used for track days

MT Street Radial 28x12.5R15


This brings me up-to-date on my build thread. I look forward to the next couple of weeks when everything currently sitting in boxes starts getting assembled and put on the car!! I'm like a kid on Christmas morning I am so anxious

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #6 of 56 (permalink) Old Jan 29th, 12, 11:43 PM
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TC
 
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Re: 70 (496) Build Thread

Thats going to be one nice green Machine!

1970 Chevelle Malibu 400
25 Astro Blue w/med blue interior
454 w/781's (NOM)
+.030 10:1 compression
Lunati 60204
Holley Strip Dom. w/800 DP
M-22W 3.31's 12 bolt
Fun but ole girl likes to drink....a lot
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post #7 of 56 (permalink) Old Jan 30th, 12, 12:04 AM
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Roger
 
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Re: 70 (496) Build Thread

Eric,

We can not wait to see and hear the Chevelle.

Roger



71 Chevelle SS with 402 BB, Bucket Seats, 700R4, & 12 bolt posi

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post #8 of 56 (permalink) Old Jan 30th, 12, 12:14 AM
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Anthony
 
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Re: 70 (496) Build Thread

Quote:
Originally Posted by fleming23 View Post
Old motor sitting on picker, ready to go to new home

Engine bay after getting car back home. It needed some attention



New rear tires sitting next to old wheels (295 vs 225)


Stripping the firewall down to clean it up a bit. Not doing a concourse correct, just want it to look better.
Thats the old motor? Dosenteven look like its been run lol?
What is the complete size if the 295`s your running and did you have to do anything to the rear Wells or any modifications to anything to make them fit?

Oh and BEAUTIFUL car!
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post #9 of 56 (permalink) Old Jan 30th, 12, 12:35 AM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Quote:
Originally Posted by TCSS1970 View Post
Thats going to be one nice green Machine!
Quote:
Originally Posted by Roger71 View Post
Eric,

We can not wait to see and hear the Chevelle.

Roger
Thanks! It should be a fun car when all is said and done.

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #10 of 56 (permalink) Old Jan 30th, 12, 12:39 AM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Quote:
Originally Posted by 7o Chevelle View Post
Thats the old motor? Dosenteven look like its been run lol?
What is the complete size if the 295`s your running and did you have to do anything to the rear Wells or any modifications to anything to make them fit?

Oh and BEAUTIFUL car!
yeah the old motor was less than a year old and only had a few thousand miles on it.

The street tires are 295/50-15 and the ET streets are 295/55s I believe. Did not require any modifications but if your rear-end is not centered you could have some rubbing on the outer wheel well I suppose.

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #11 of 56 (permalink) Old Jan 30th, 12, 10:44 AM
Ryan
 
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Re: 70 (496) Build Thread

Look good Eric, very clean build! I like the wheel and tire combo... keeping it old school

If you get some pictures of the UMI stuff installed please post them. I would like to add them to our customer gallery on Facebook.
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post #12 of 56 (permalink) Old Jan 30th, 12, 10:53 AM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Quote:
Originally Posted by UMI Performance View Post
Look good Eric, very clean build! I like the wheel and tire combo... keeping it old school

If you get some pictures of the UMI stuff installed please post them. I would like to add them to our customer gallery on Facebook.
Absolutely, should be tearing into the front suspension in a couple of weeks and will definitely take some pictures of the before/after, etc.

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #13 of 56 (permalink) Old Feb 1st, 12, 10:02 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Hopefully money well spent! It cost more to port this intake than the actual intake cost.


Pistons were finished up today so lots of progress should be made soon!

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #14 of 56 (permalink) Old Feb 9th, 12, 7:26 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Updates



How it looked when I left this afternoon


Hope everything goes together this week and we can get the car in Saturday or early next week to begin the rest of the build!!

70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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post #15 of 56 (permalink) Old Feb 10th, 12, 6:51 PM Thread Starter
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Eric
 
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Re: 70 (496) Build Thread

Debating if I want to get a polished Power Master Alternator or stick to the natural AutoZone special.

Hoping we can manipulate the air cleaner to fit under the hood (might require a bit of cutting & hammering but we are determined to make it work!)


70 Chevelle
496 cu. in. "cruiser"
Assembled & Tuned by Mo's Speed Shop Dallas, GA
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