achieve most HP from bolt ons
Your list above is great but to get 30-40 more.. out of bolt ons..? (I feel like i'm missing something obvious). I know it would be something accessory drive related like underdrive/electric water pump/no belt at all lol. But what else am I missing here.
This one can be contentious. In the small block days we used to consider higher ratio rockers bolt on. Now people see it as a poor-man cam, although the rockers cost more than the cam. Go figure. Even roller tip vs stock is helpful, because stock rocker ratio varies. You gain low lift duration with rollers.
That is probably not everything, but that will get you a good bit more. Most people will not do that list though, because a cam is cheaper than a EWP or a manual steering rack, etc.
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But when you add all that up, most will say just go heads/cam. There is something nice about a motor that has not been opened up though. Never quite seem as tight as from the factory
Superchargers bolt on right?
Like Darth mentioned in the small block Chevy days rockers would usually be viewed as a bolt on. That's the way I think of bolt on 's.
Occasionally, someone would argue if engine oil touched and lubricated the part it's not really a bolt on its an internal engine Mod. In that view rockers aren't really bolt on.
If it involves more than removing the valve covers and oil touches then it's well beyond what I think of as a bolt on. Heads or supercharger are definitely not a bolt on to my way of thinking.
Do the older LS1's with the bigger factory cam tend to be better for bolt on hp than the latter 01-02 cars?
To be bolt-ons only the vehicle must be stock internals and NA. 98-00 cars do have a bigger stock cam but the 01-02 cars offset it with better 241 heads. Some 00 cars have both the bigger cam and 241s.
Rockers are the grey area. Personally, I don't care either way but it needs to be general consensus. That's the only reason I haven't done them. I'm sure some the the guys on the fast list have them but they don't allow them anymore which is a disadvantage.







