489 BBC Swap
Hey all, my friend has a Chevy 489 (bored and stroked 454) for sale and I couldn't pass up the opportunity to buy it. The motor will be swapped with my 350 and I have a few questions about the swap.
1. Would I need to do/buy anything else beside motor mounts? 2. I will mainly be driving my truck on the street and occasionally on the strip at local races. My rear end gear ratio is a 4.10 and I am wondering will higher "highway" revs hurt my bbc? I wouldn't think so, but I've had a few different opinions. 3. Will my TH350 be a reliable transmission? Will I need a shift kit or another torque converter? Any and all help is greatly appreciated. Thanks in advance! |
Re: 489 BBC Swap
I'd think a new trans to handle the big increase in power which means a new driveshaft ... Just a thought. Probably a better radiator since you plan on driving it. Uh. Misc hoses and stuff like that.
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Re: 489 BBC Swap
Just noticed the occasional strip use. Def a new trans or you'll grenade the th350. Sell the 350/350 unit for a th400 and a driveshaft for a 396/th400 truck it should fit.
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Re: 489 BBC Swap
Awesome, thanks. I did get the rad (Griffin) and dual fan setup that was with the bbc aswell with my purchase. But good thinking for the trans. I did happen to notice that when I bought the truck, the original 2 piece drive shaft was upgraded to a newer one piece. Not sure if that helps or makes much of a difference in the long run.
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Re: 489 BBC Swap
What's the truck like, I love pics! :lol:
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Re: 489 BBC Swap
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Bought her online from a fellow in Texas and have plans of giving her a makeover when the snow falls.
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Re: 489 BBC Swap
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Re: 489 BBC Swap
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Here's the bored and stroked 454
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Re: 489 BBC Swap
Looks good, keep us all updated on the build. :metal:
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Re: 489 BBC Swap
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Re: 489 BBC Swap
Motor mounts are a bit different. A few inches forward or backward I believe.
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Re: 489 BBC Swap
The BBC stands are different to allow for stranger insulators aren't they? The SBC mounts will bolt up but they get ate out pretty quick.
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Re: 489 BBC Swap
I have a complete set of oe 1972 bbc motor mounts lmk if your interested i'm getting ready to list some stuff for sale.
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Re: 489 BBC Swap
X2 on redneck
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