Author Topic: Engine rebuilt  (Read 6430 times)

philip

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Engine rebuilt
« on: December 21, 2022, 10:50:19 AM »
I guys

After 56 years and only 90 000 km , i have planed to rebuilt my 327 L30 engine.
It run well , but i have a lot of oil leaks and a greasy spark plug in cyl 8.
I m in France ,so i need to order in US and like tomake only one order.
I would like to know if it’s pissible to install 3/8 valve pushrod instead the 5/16 ?
I don’t know for the moment the size orginaly installed in my block , but i find 2 sizes.
So i think bigger is better but do they fit ?

Thanks for your help

Merry xmas and happy new year

Philippe
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

Stingr69

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Re: Engine rebuilt
« Reply #1 on: January 01, 2023, 02:41:18 PM »
The bigger aftermarket pushrods will not fit without cylinder head machine work.  You would need to drill out the original obround pushrod holes to a larger diameter to accept the bigger diameter pushrod.  The rocker arm studs would all be pulled out then the tops of the bosses are cut down about 1/4" or so.  The rocker arm stud holes are then drilled and thread tapped for screw-in studs.  You would need to buy wider slot steel pushrod guide plates to match the new larger diameter pushrods as well.

You might be able to use a later design guided-tip rocker arm and avoid the extra rocker stud machine work and special guide plates but the pushrod holes still would need to be opened up. Those guided tip rocker arms are only for hydraulic cams because you cant get a feeler gauge in there to set the lash.

Bottom line - you probably want to stick to the smaller (stock) pushrod design  Keep it simple.

tomstiel

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Re: Engine rebuilt
« Reply #2 on: January 24, 2023, 07:57:05 PM »
great advice

philip

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Re: Engine rebuilt
« Reply #3 on: January 25, 2023, 07:30:43 PM »
Thanks
I check , theycare 5/16 so i will order the same if needed...
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

philip

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Re: Engine rebuilt
« Reply #4 on: February 25, 2023, 12:55:53 PM »
Ok engine us out the bay and i start to rebuilt it.....
Seams to be only 90 000 km , very low carbon deposit at piston top.
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

philip

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Re: Engine rebuilt
« Reply #5 on: February 25, 2023, 12:57:53 PM »
More pictures
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

philip

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Re: Engine rebuilt
« Reply #6 on: February 25, 2023, 12:59:49 PM »
And some others
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

Stingr69

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Re: Engine rebuilt
« Reply #7 on: February 25, 2023, 03:01:50 PM »

philip

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Re: Engine rebuilt
« Reply #8 on: May 29, 2023, 03:41:58 PM »
Don’t worry , i have blocked the exhaust gaz passage under the carb for several year.
Now i d7d the same for the entired manifold.
We don’t have low  outside temp here in france....
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

philip

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Re: Engine rebuilt
« Reply #9 on: May 29, 2023, 03:49:54 PM »
Done
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

David K

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Re: Engine rebuilt
« Reply #10 on: May 29, 2023, 04:02:16 PM »
Nice job! Can I get a close up pictures of the trim tags?

philip

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Re: Engine rebuilt
« Reply #11 on: May 29, 2023, 05:20:27 PM »
Sure
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

philip

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Re: Engine rebuilt
« Reply #12 on: May 29, 2023, 05:24:32 PM »
More
convertible 1967.12467
RPO: A02-A31-A67-B37-B93-C06-D55-F41-G80-J50-J52-K02-L30 -M20-N33-N40-N61-U17-U18-U25-26-27-28-29-V31-V32 Z21-Z22-Z87

x66 714

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Re: Engine rebuilt
« Reply #13 on: May 29, 2023, 07:19:10 PM »
Lose the Ford decal on the fan shroud. No 1st gen ever had one....Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

fsc66

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Re: Engine rebuilt
« Reply #14 on: June 15, 2023, 01:40:29 PM »
Agree with Joe a real pet peeve of mine those damn FORD only, orange caution decals are sold by loads of Chevrolet retailers as correct for Chevrolet. Constantly see them at high end car shows and continue to advise people, they are incorrect and a FORD only product

Paul


 

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