Big block cons

[IGO 202]

Hood clearance can be a problem along with the heater box. A set of aluminum heads will shed some weight off the front end.

A LS based engine is hard to beat, lightweight and plenty of power plus they're so easy to work on but.............I absolutely, positively love my big block.

Dan

 

[CutlassJ]

I Love my BB olds motor. I put aluminum heads, intake, radiator, and headers. Yes for more HP but also takes a lot of weight out of the front. Plus i got lucky, car came with aluminum bumpers and hood. I wouldn't be superised if it weights the same or really close to stock. I also bought every after market brace I could bolt or weld on for the time being.

 

[L92 OLDS]

I Love my BB olds motor. I put aluminum heads, intake, radiator, and headers. Yes for more HP but also takes a lot of weight out of the front. Plus i got lucky, car came with aluminum bumpers and hood. I wouldn't be superised if it weights the same or really close to stock. I also bought every after market brace I could bolt or weld on for the time being.

What does your combo run in the quarter mile? Sounds nice.

 

[Clone TIE Pilot]

If you have a welder or access to one this will be the least expensive upgrade you can do in comparison to everything else, it is just time and materials.
Could you get by without it, possibly but the big block will reveal any frame weakness relatively quickly once you start having fun with it and many frames
besides being 30+ years old will have worn out or missing body mounts along with the possibility of the notorious rear frame rail rot.

Also rot around the frame holes the bushings go in. OEM design bushing tend to rot the frame where they mount to it.

 

[Clone TIE Pilot]

Hood clearance can be a problem along with the heater box. A set of aluminum heads will shed some weight off the front end.

A LS based engine is hard to beat, lightweight and plenty of power plus they're so easy to work on but.............I absolutely, positively love my big block.

Dan

If you have the $500 tuning software for them unless you have a tuner do it for you. Perhaps the motor block itself is easy to work on, but the support systems are much more complex and expensive.

 

[IGO 202]

I guess I should have been more specific, I meant the mechanical part. My son just swapped his 5.3 out for a 6.0 liter in his GMC and decided to install a Comp cam, man it was cakewalk. No water to drain, no intake or lifters to remove, etc.

He sent his ECU out to have it reflashed for his cam, long tubes & CAI changes. Cost him 275 bucks but they will update for life.

If someone didn't want to fool with the electronics they could always convert to a carb & intake on the LS based engines.

Dan

 

[Clone TIE Pilot]

Then most of it's advantages over older motors is lost converting it to carb besides being emissions illegal. Also seems like LS parts go for 4x or more over gen 1 parts. Installing OBD2 computer and emission systems into your car (converting it to modern OBD2 emission standards) is a tall order. But every motor is going to have it's downsides. BBCs are heavy and hit the HVAC and illegal to install.