March '26 Chat -- Madness is the Different Drummer

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PureHybrid

PureHybrid

Isuzu Shakes IT
Feb 15, 2012
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If you went 10 bolt you'd need to look for an 8.5", which probably isn't going to make sense hunting for and might as well go 12 bolt. Just be the odd man out and get a quick change rear
 
Chevy1925

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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JoshH said:
Thanks Tom. I'm glad I walked away with no life threatening injuries. I'm definitely still feeling the soreness, but it seems to be improving some.

James, I picked up a project a few weeks ago, and I'm kind of in the same boat as you with the Mustang. Granted mine doesn't have any sentimental history to influence my decisions, but I have always loved 55 Chevy cars. I found a pretty decent one that was a decent price, and I picked it up from an old guy that had too many projects already (and interestingly enough his wife wanted to use the cash he got from the car to buy a 68 Mustang). When I was first looking, I thought I wanted a car with a big block or wanted to swap a big block into whatever I ended up buying, but after doing some reading it seems like to make them fit you have to either cut/bash the firewall or move the motor forward for clearance. I'm not super excited about either option, and now I'm leaning towards a larger displacement small block. I'm leaning towards a 427 (4.125" bore and 4" stroke) and keeping it vintage appearing but adding modern accessories like alternator, a/c, and power steering. I might do one of the Holley sniper throttle body fuel injection systems on it, but I'll probably initially stick with the 4 barrel Holley carb that is on it now. I have people telling me to LS swap it, but that's not what I want. It currently has a 250 hp 327 from a mid 60s Corvette (that's the story the guy I bought it from got which seems to add up to what I'm seeing on the car) with a wide ratio Muncie 4 speed. I want to pair the new engine with a Tremec TKX 5 speed for better engine RPM while cruising. I don't think I'll need the added size/weight of a 6 speed or the extra overdrive. The .68:1 5th gear should be good enough for what I'm doing. The biggest dilemma I'm facing is what to do with the rear axle. I don't think the stock rear axle will hold up to the power I plan to put through it, and most of the aftermarket options are Ford 9" axles. I know they are plenty strong and relatively easy to work on, but I'm having a hard time putting Ford parts in my GM car. I'm just hoping I don't regret swapping out the current drivetrain and not going with a modern engine with the associated modern fuel injection.
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Ha! The irony!

I think a 427 will be fun as hell in that car. My dad ssand rail has a aluminum 427 Chevy SBC in it. It uses an AFR block with AFR 210 heads. It made 651 hp at the crank on 91 octane. Car is an absolute riot to drive in the dunes. We are highly contemplating taking it out and putting it in the 72 pick up that my dad and I plan to restore. But I’ll post that progress whenever we get to that point.

If it were me, I would go with a newer 8.5 inch 10 bolt rear end or just source a 12 bolt rear end for that car. I would have just as hard of a time as you by putting a 9 inch in the back of it. If you’re not trying to drag race it, I can’t see why either one of those rear ends will hold up.
 
JoshH

JoshH

Daggum farm truck
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Feb 14, 2007
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PureHybrid said:
If you went 10 bolt you'd need to look for an 8.5", which probably isn't going to make sense hunting for and might as well go 12 bolt. Just be the odd man out and get a quick change rear
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The quick change option did cross my mind! I might have to look into that again.
 
badmatt

badmatt

AVOCADOMAX
Mar 21, 2015
48
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I’d say you’re better off purchasing an off the shelf 9” from quick performance or the like.

Wider variety of options and it’s hard to beat the options available and the unsprung mass of a 9” compared to a GM 10/12 bolt.
 
TheBac

TheBac

Why do I keep doing this?
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Apr 19, 2008
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What an absolutely beautiful day today. 68* and sunny.

You idiots all have IQs easily surpassing 100. :ROFLMAO:
 
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