I am going to ask a few of the inevitable questions that come with any discussion about engine swaps:
Do you already have an SBC in your rig?
Yes a refurbished 350 4 bbl carb
Why would you chose a 64 year old platform (GEN I or II) over a modern LS-based platform (Gen III or IV, like an 5.3 LM7)?
Not sure I understand this... the zz6 is a new engine.
Are you concerned at all about overall fuel economy?
If you are looking at crate motors, did you do a cost/benefit analysis vs. an LS (i.e. fuel economy, engine life, etc.)?
What type of transmission would you be leaning towards?
H45 4speed Stock
How much horsepower/torque do you need, and is the rest of you 40 built to take it?
It's had a 300 plus hp 350 engine in it for years.
What type of off-road driving do you do?
Moderate to daily driver
The answers should help the discussion about this particular engine choice?
Do you have any suggestions on a Gen III or IV engine swap?The ZZ6 is a Generation II engine and relatively speaking, older technology.
Generation III & IV engines are represent the newest engine technology with much better diagnostic capabilities and longer lifespans.
Both will make your 40 go down the road.
If I were doing it I would go with BluePrint Engines 350CI Crate Engine | Small Block GM Style | Longblock | Iron Heads | Roller Cam as it is a warrantied (30 month, 50k) roller cam engine with the nice vortec heads that should be super durable/reliable, then throw something like a Holley Sniper on top and do timing control with their dizzy. It would get you to approximately the same place and be a nice clean system from name brands for likely less money ($3K+.)Has anyone out there had the privilege of installing one of these in their FJ 40?
ZZ6 EFI Deluxe Small-Block Crate Engine | Chevrolet Performance
It's pretty straight forward and easy swap. If you've done a swap before, this will be pretty much the same.Do you have any suggestions on a Gen III or IV engine swap?