What's considered a bolt-on?
Thread Starter
Joined: Dec 2004
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From: Dallas (Richardson), TX, USA
What's considered a bolt-on? Like the title says, I'm curious what people consider bolt-ons. The following I pretty much assume are "bolt-ons":
- Exhaust
- Induction (lid, bellows, TB, filter, and MAF)
- Pulleys
- Suspension
But are these?
- Springs/rockers
- Cam
- Heads
- Pushrods
- Intake manifold
- Exhaust
- Induction (lid, bellows, TB, filter, and MAF)
- Pulleys
- Suspension
But are these?
- Springs/rockers
- Cam
- Heads
- Pushrods
- Intake manifold
Originally Posted by Steve Burger
Normally, anything that does not touch oil.
My thoughts exactly. I say if you have to crack open the motor (intake manifold excluded) it's not a bolt on.
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Joined: Feb 2003
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From: The South
I don't even consider rockers a bolt-on. If it touches engine oil or is a power adder it's not a bolt-on. As for the rockers, think about it. You can add high ratio rockers that increase the lift of the cam, yet a cam isn't a bolt-on. Doesn't quite make sense to consider it a bolt-on IMO.
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like bolting on a 408 or 422 twin 60 setup... 
Im with the strict definition that a bolton does not touch oil. A full bolton car may never have had a valve cover off. Although I would say gears are a bolton mod since its not touching engine oil, but gear oil. Now is a built TH400 and 4800 stall converter considered a bolton? 
11 Second Club
Joined: Feb 2003
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From: The South
I'd say a built TH400 and 4800 stall converter could be considered bolt-ons. Bolt-ons are usually power adding mods though. If it doesn't add power I don't think it can really be considered a "bolt-on", but is in another category of mods.
There is definetly a fine line here, IMO though rockers are a bolton, but then again thats just my opinion. What makes me think this way is the ease of which this modification can be done. Remove coils, valve covers and unbolt the rocker arm plate. Tada! Bolt on the new rockers to the plate and bolt that on top of your valves. Springs on the other hand step further into that other side of the line. Pushrods are right on par with the rockers though, at least thats what I think.
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From: The South
Originally Posted by 1FST99Z
hell I dont see why everyone is being so picky. how I see it you have to bolt all of those on. so they are all bolt on's to me..
