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general advice for begining ground -up frame restoration


Guest Anonymous

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Guest Anonymous

i aquired a 280z chassis with no engine and transmission for $50 dollars, i have been interested in a upgrade to a v-8, so i thought that this car would be ideal.(i hope).

questions

1. what would be the best way to clean underboby so i could inspect for weak areas?

2. if i plan to put a crate 350 in the car should i concider strenghtening the frame? i don't plan to drag the care and the chassis was originally set up for a automatic.

3. are the the stock drive train components strong enough to handle the v-8?

 

thank

john

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Guest Russ240z

Welcome to the site John. I just arrived myself. Look at the threads under paint and body for discussion on rotisserie's for the serious approach to underbody inspection and restoration. In most cases subframe connectors are a good idea although not required. The 280 rear end is usually good for 350+ horsepower. I'm sure someone here can provide the gear ratio for auto's and verify that they had the 200r diff as well.

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Right now in the driveline section of the forum there is a discussion on the u-joints in the half-shafts. I am also doing a 280Z shell. I don't know if it's the best solution, but with the larger size of the frame rails under the floorboards (vs the 240Z), I am just going to tie into those, into the rear subframe, and tie my rollbar into that. Once the weldings done, I am going to get the structural foam and fill all of empty areas of the frame rails side rails etc... to add additional rigidity. That way I won't have to add a cage! I think this will work and when I asked about it I didn't get any negative.... well or positive coments either... So Ima gonna try it! icon_biggrin.gif

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John,

 

Scraping the undercarriage to remove the undercoating is a messy, time consuming job. Guys have done it with heat, etc. use the search function to get all the info--it has been hashed out numerous times. Make sure you check for extensive rust underneath and in the typical areas for a Z (rockers, battery box, etc). "How to Restore Your datsun Z Car" by Wick Humble is a good (read: perfect) reference tool for your project.

 

The stock unibody should be strong enough for a crate 350. Consider the JTR kit or making one along those lines. If you want a manual transmission, the conversion is quite easy and you'll merely have to replace some parts on the console to have the interior be at M/T spec. Good luck with your project.

 

Davy

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I had the entire undercarriage and paint (interior and exterior) stripped with walnut shells. I had all previously stripped all components, mechanical, fenders, doors, harch, glass, interior, dash board, etc.,so there was only the unibody shell left. The stripping was more expensive than I originally thought but it certainly made continued body repair easier. Also with everthing stripped I discovered several areas that need repair that were previously masked.

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Guest Anonymous

thanks for the info, i'm kinda scared and excited about my project. i feel better this forum is here for support. i'm am not ricjh enough yet to make expensive mistakes. i will prbably get started this fall when i get home from korea. 2thumbs.gif

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quote:

Originally posted by Russ240z:

The answer to this is probably obvious but where do I find access to the book, "How to Restore Your Datsun Z Car," on the internet?

 

Russ, it is still a fairly common book. Classic Motorbooks (Motorbooks International), Amazon.com, BN.com, etc. all would carry the title.

 

Davy

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