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396 bbc in 89 iroc questions

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Old 05-30-2010, 08:08 PM
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Car: 89 iroc-z
Engine: 427 bbc
Transmission: borg warner t-5
Axle/Gears: 3:23 posi
396 bbc in 89 iroc questions

hey guys just have a couple questions b4 i do my swap just to give myself and idea of what i need for extra work is going to be needed i read the whole swap threads but just want extra comfrot b4 the swap is done

q1 wondering if there is room for tall vavle covers with an a/c heater box or sould be converted to a non a/c unit?

q2 would there be room for the radiator in stock location for a long style water pump and my car came factory with the dual fans?

q3 is there room with the tall valve covers for the wiper motor? (since this is a street car and the area i live in they are mandatory to work)

thanks for your time and info - mike
Old 05-30-2010, 08:21 PM
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Re: 396 bbc in 89 iroc questions

You can solve 2/3 of those problems by tossing the tall valve covers and whatever is under them that isn't stock height. You really don't need a stud girdle until you're over 800 horses or over 6500 rpm.
i do know the '91-'95 aluminum valve covers will clear the a/c box and the wiper motor if using Moroso solid motor mounts and frame pads.
Old 05-30-2010, 08:26 PM
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Re: 396 bbc in 89 iroc questions

thanks Atilla the Fun at the present moment there is low profile valve chrome vavle covers on the motor but was planing to put stud girdles and the the tall covers
Old 05-30-2010, 08:37 PM
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Re: 396 bbc in 89 iroc questions

Just use ARP 7/16" studs.
Old 05-30-2010, 08:40 PM
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Re: 396 bbc in 89 iroc questions

In the thread
92 RS 454 swap,
The Devastator is using a long water pump.

Posts 12 & 13 discuss briefly the pump. Post 19 has a pic with aftermarket pullies.

I don't recall what pump booboosean used.

Good luck & keep us updated!!
Old 05-30-2010, 08:45 PM
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Axle/Gears: 3:23 posi
Re: 396 bbc in 89 iroc questions

thanks guys for your help the motor should be going in once my headers arrives and i can post pics and and curantly installing subframe connectors
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