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1987 740 Turbo 700

Came across today a 1987 740T(manual)good body and interior, about to be junked.
Found cylinder-head and all related parts in trunk. #3 cylinder head combustion chamber - exhaust seat non existent - exhaust valve cracked. Cylinder bores have surface rust. Carfax report shows car has over 220,000 miles.

Is the car worth rescuing? Is this type cylinder head available from recyclers?
Can I fit a non aspirated B230F cylinder head and do away with the turbo set-up?
Will a complete non-aspirated B230F engine bolt up?

Can the experts weigh-in.

Thanks

Morton Sherry










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1987 740 Turbo 700

I agree with Don Foster although I can't offer as much insight as he can. I would find a drop-in B230FT. Why do away with the turbo? That's what makes the car so fun and desirable. Plus, if you go with a turbo and want to spend a little time and money, you could make that car into a beast with some mods.
Don
--
92 745T 92K mi








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1987 740 Turbo 700

Can anyone locate a 740 turbo grill and hood!








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1987 740 Turbo 700

"Is the car worth rescuing?"

Possibly. Much depends on your budget, your tolerance for spending money, the price of the car, parts availability, and how much skilled mechanic's work you can do yourself.

"Is this type cylinder head available from recyclers?"

Sure!

"...a non aspirated B230F cylinder head and do away with the turbo set-up?"

(You mean "naturally aspirated.") You can, but the car will have crummy performance and crummy fuel economy. To make it like stock, you'd be better off replacing the four pistons -- the turbo pistons are dished, NA pistons are flat. But that would cost a zillion bucks and require a tear-down.

You're FAR better off to look for another drop-in B230FT turbo engine or a drop-in non-turbo B230F engine. I've seen perfectly good engines of both genders go to the crusher because these motors last so damned long.

"...a complete non-aspirated B230F engine bolt up?"

Yep. If you go that route, perform some preventive maintenance first, such as a new rear main seal. Might even consider a new clutch, etc., at the same time. And if you use an engine with an unknown history, replace the water pump, t-belt, tensioner, and front seals, too.

Don't forget that you might need some small stuff from the donor car to swap your car from turbo to non-turbo.
--
Don Foster (near Cape Cod, MA)







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