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#211
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In terms of internals I stuck with somewhat unique 66 Hi Perf rods GM rods. I believe there on par with dimple rods but basically an earlier version. There actually hard to identify unless you have another lower hp rod to compare. With all the builds I have done the stock GM parts are plenty good. Consider for a second the abuse these motors saw back in the day. The 6223 cranks are also solid pieces to reuse. I dont like using the ones that start to get beyond .030 over on the mains or rod bearings. My dad and I are split on rocker arms, dad buys some aftermarket stockers, and go with the comp roller tips. As you may know once you go with a roller cam your changing your pushrods. Just about any brand of larger diameter rods will work, even something like Comp. Erson sells them as well. Pistons are abit of a toss up. I have noted that each engine guy tends to like a certain brand. In the case of the last 3 l78s my dad and I worked on we went with some rather pricey custom made Racetech pistons. We liked the idea because we ended up with way lighter than stock piston with a more modern less drag ring package. We also did custom so we could really dial in the dome CC to get back to as exact 11:1 compression as we could. I hope anyone reading this is laughing because if its not obvious these l78 cars to us are too valuable to take out and drive much. This brings up a point we struggle with on our builds. After the block is decked, or maybe even the heads, and you start to CC the combustion chambers you sometimes learn your either over or under on compression ratio when you do the math. That’s one of the reasons we gravitate to custom made pistons. Some might say change the head gaskets but we strive for keeping the quench area in a sweet spot range(I believe .040-.045). Im not sure what to say about your engine guy. If i was in your shoes i would ask a few questions to understand why he feels that way. He may very well have a good reason. These cars are expensive to restore and throwing more unnecessary parts isnt something I strive for. You mentioned L89. Im gonna assume your not planning to drive this car much. If its really just a show car there is no reason to start buying new parts(pistons being the exception). I have cars I drive and cars I don’t. There is a valid reason to start changing out parts for a car you drive. One of the benefits that I have seen is newer parts are strong and lighter. Getting weight out of the rotating assembly will always provide benefits. One last comment, ask others and learn as much as you can. Im just one data point. Last edited by OneStopRestoration; 11-15-2023 at 11:01 AM. |
#212
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Really appreciate the time to reply.
I’m new to this whole restoration game, hence the questions. I’ve got the machinist giving me his opinion, my engine builder giving me his, and my corvette restoration mentor has his opinion. And they all differ from one another. Fantastic job on the Chevelle. I learned a lot from reading thru the thread. Thank you ! |
#213
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Great work!! I love a Chateau Slate '66! - Bill W |
The Following 3 Users Say Thank You to 67since67 For This Useful Post: | ||
#214
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I think it came out ok.
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The Following 18 Users Say Thank You to OneStopRestoration For This Useful Post: | ||
67 Nova Boy (03-16-2024), 69M22Z (03-15-2024), big gear head (03-15-2024), carnut4life (03-23-2024), dykstra (03-15-2024), Hawkeye (03-17-2024), L_e_e (03-16-2024), mhurd (03-16-2024), olredalert (03-16-2024), Roger M (03-16-2024), RPOLS3 (03-21-2024), ruralrte66 (03-17-2024), scuncio (03-15-2024), SS427 (07-02-2024), Stihl (06-06-2024), Tenney (03-16-2024), tom406 (03-15-2024), Tuna Joe (03-17-2024) |
#215
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Well that is an understatement! Looks GREAT! Some under hood and interior shots pleez!
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Sam... ![]() |
#216
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Im a pretty hard critic of my own work, but thankyou.
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The Following 9 Users Say Thank You to OneStopRestoration For This Useful Post: | ||
66BoxNova (03-17-2024), big gear head (03-18-2024), carnut4life (03-23-2024), Dave Rifkin (03-17-2024), dykstra (03-17-2024), olredalert (03-17-2024), RPOLS3 (03-21-2024), scuncio (03-16-2024), Tenney (03-17-2024) |
#217
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Gorgeous! Best color for ‘66.
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The Following User Says Thank You to scuncio For This Useful Post: | ||
OneStopRestoration (03-17-2024) |
#218
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Beautiful Chevelle! You do great work.
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Robert _______________ 1969 Chevelle SS396 L78 M21 4.10 2023 Stingray Coupe Z51 |
The Following User Says Thank You to tunes For This Useful Post: | ||
OneStopRestoration (03-17-2024) |
#219
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Absolutely amazing job!
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The Following User Says Thank You to Tuna Joe For This Useful Post: | ||
OneStopRestoration (03-17-2024) |
#220
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Not typically a fan of the vinyl tops but your car just flat nailed it. Always impressed when someone starts with a car in the condition most people wouldn’t touch and turns it into a masterpiece like you did Sir. Great job and Thanks for saving it!
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1969 SS 396 300 deluxe post car 1969 SS 396 300 deluxe hardtop 1969 SS 396 chevelle 1978 chevy shortbed step side 1983 chevy shortbed 1985 chevy shortbed If a hammer and duct tape wont fix it u have electrical problems! |
The Following User Says Thank You to chevyman0429 For This Useful Post: | ||
OneStopRestoration (03-17-2024) |
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