NoHope

I've seen a lot of debate over this, with good points on both sides. I am still on the side that anything engine internal is no longer a bolt on, but some people are not.

So to you, are a cam or heads considered a bolt on?

flattusmaximus78

iTrader: (1)

Bolt on is a none internal engine mod. Bolt on doesn't not include nitrous, or forced induction.

Intake, tune, exhaust.... etc.

badformulaLS1

iTrader: (1)

I've never heard of anyone calling them bolt ons

TheBlueKnight

iTrader: (4)

I've seen these threads come and go over the years. A bunch of people will say they are technically bolt ons while the majority will say they are not. It's all a personal preference.

Is a cam bolt on? My opinion is it's not. You have to take apart the front of the engine and slide it in, it's part of the internals. Are heads a bolt on? Kind of a grey area for most. It's one of those things where it's technically a bolt on, but most people don't see it as such as the heads contain the valve train which mechanically interacts with the cam and internal components.

Burken01

iTrader: (88)

we all have are own definitions but this is the standard definition used..

as long as the longblock is untouched then its considered a bolt on..

But everything is technically a bolt on

I guess the term "bolt on" is more for conversation when explaining non-involved quick mods done to your car.

RPM WS6

iTrader: (3)

I don't know of any debate over this nor any good arguements that would point to them being bolt-ons. If anyone actually believes that modified/upgraded cylinder heads are a bolt-on simply because they "bolt on", then you might as well call an upgraded engine block a bolt-on as well, because it too simply "bolts on" to other items.

HCI2000SS

iTrader: (2)

Technically no, but who really gives a damn...power is power lol

thunderstruck507

iTrader: (18)

Not even close.

Nitrous or a blower are also not bolt ons...

senicalj4579

iTrader: (41)

Theres so many ways anyone can spin this but in a nut shell I say no, they are not bolt ons.

RADEoN

iTrader: (12)

turbos and superchargers bolt on... stroker shortblocks bolt on... so anything you do to a car is considered a bolt on if someone is a retard.

I HATE IT when people say "full bolt on"

ULTIMATEORANGESS

iTrader: (4)

no, but dont let that stop you from BOLTING them in.

Blackpanther99

iTrader: (8)

I personally dont think a cam or heads would be considered as bolts on mod. Even though the heads are external part of a engine it could be considered a bolt on, but to me its not a FBO mod. Its a good question though. People claim they have just full bolts on when they have a bigger cam and ported aftermarket heads. Lol

1320Chicken

iTrader: (4)

To me if you have to replace a gasket that touches the block its not a bolt on. Only exception I'd make is an e water pump.

high impact

iTrader: (5)

Interesting...I have never seen a debate over heads/cam considered as a "bolt on". Although I have wondered about an intake being considered a "bolt on"...an intake should not be considered a "bolt on.

redtan

iTrader: (5)

+1...I've never encountered anyone that would say heads/cam are "bolt-on modifications" even though they technically do bolt on.

For most gearheads (not ricers) a bolt-on is something outside of the longblock and does not include any form of "forced" induction (nitrous, blower, turbo).

WS.SIX

iTrader: (3)

My personal definition of a bolton is anything that doesn't touch engine fluids. Minus superchargers and turbochargers. In my eyes (dry) nitrous is a bolton. A wet kit is not because it interfaces with the vehicles fuel system.

So by that definition, cam/heads is not considered a bolt on as they both touch oil.

MonmouthCtyLS7

iTrader: (6)

No debate, H/C isn't a bolt on.

justin hover

Well at any point you unscrew, add a new screw or screw an existing bolt...to an internal cam install, well then it's surly a bolt-on..haha
Whos the jerk who voted yes???

94 White T/A

I've been taught that anything that touches oil is no longer a bolt on

gtfodave

Ive always heard it like this I/H/E intake as in cold or ram air/ headers/Exhaust
and H/C/I heads cam Intake