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Old 08-13-2018, 10:03 PM   #1
MIKE JONES 302
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Default 302 Chevrolet Engine Build

I've always been fascinated by first generation Z/28s, which brings me to my first engine rebuild, a 1966 October 657 casting block with matching 462 casting heads. I will post pictures as I go along. The first pictures show the core cleaned along with the block prepped for machine work which I will start this coming week.
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Last edited by MIKE JONES 302; 08-13-2018 at 10:35 PM.
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Old 08-14-2018, 07:48 AM   #2
Dwight Southerland
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Default Re: 302 Chevrolet Engine Build

Is this a restoration type project?
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Old 08-14-2018, 09:45 AM   #3
MIKE JONES 302
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Default Re: 302 Chevrolet Engine Build

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Originally Posted by Dwight Southerland View Post
Is this a restoration type project?
No it will be dyno tested then put on a cradle until I get a car. The machine work starts today.
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Old 08-14-2018, 11:14 AM   #4
Nmbr1GMfan
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Default Re: 302 Chevrolet Engine Build

Very cool build.
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Old 08-14-2018, 01:43 PM   #5
Todd Hoven
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Default Re: 302 Chevrolet Engine Build

I have a fresh lg journal 302 crank for sale if you need it. Just balance and go. PM me if interested
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Old 08-14-2018, 03:14 PM   #6
Dwight Southerland
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Default Re: 302 Chevrolet Engine Build

If you are building a race motor, you probably should consider different rods.
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Old 08-15-2018, 02:31 PM   #7
larrylomascolo
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Default Re: 302 Chevrolet Engine Build

I would take Dwight advice, they make some nice aftermarket rods and N.H.R.A. approved list.it all depends how much H.P ,lot of variables
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Old 08-15-2018, 07:50 PM   #8
Casey Miles
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Default Re: 302 Chevrolet Engine Build

Why are you starting with a 2 bolt main block, 302 came with 4 bolt? The original blocks where 618 castings in '69. I'm not questioning your build, just pointing out different items, but in 1966 maybe they used 2 bolt blocks.
Also, if you are using an older block be sure to test the walls for pin holes. I personally got burned by the pin holes twice.
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Last edited by Casey Miles; 08-15-2018 at 07:58 PM. Reason: more info
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Old 08-15-2018, 09:50 PM   #9
MIKE JONES 302
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Default Re: 302 Chevrolet Engine Build

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I have a fresh lg journal 302 crank for sale if you need it. Just balance and go. PM me if interested
Thanks, but I have a crank. I will have it ground and indexed, and the stroke will be set at 3".
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Old 08-15-2018, 10:02 PM   #10
MIKE JONES 302
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Default Re: 302 Chevrolet Engine Build

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Originally Posted by larrylomascolo View Post
I would take Dwight advice, they make some nice aftermarket rods and N.H.R.A. approved list.it all depends how much H.P ,lot of variables
This is my first over haul, I hope to race, but I will keep the RPM around 7000 RPM, I will be running a light piston with a low drag ring pack. There was a guy that came around my Dads shop that bought a new 1967 Z/28, he said he buried the tach every day-anyone else ever heard this story?
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