does a 3.8 l engine bolt up to 2.8 L motor mounts in a 1984??

 

nope, only engines that will drop right in + tuning are the 2.8-3.1-3.4, reason is is they are all 60* engines, just like the SBC, where the 305-350-400 are all the same on the outside, inside is bored/stroked differently to make the extra cubes.

It is possible to drop in a 3.8, but its alot of custom work, with this kind of work it becomes cheaper to drop in a v-8, and much more rewarding. Anything is possible, what are you planning on doing with the car?

If you are just looking for more power out of a new engine, then i recomend a 3.4, do some headwork and a better cam, and you could see 180rwhp, compared to the 90-120rwhp out of the 2.8.

Want more info on the 2.8-3.4 swap? Check out the Swap Boogie on the tech section at the home page.

 

want to swap in a Grand national motor

 

Maxx - The SBC is a 90* motor, not 60* like the V6 engines.

 

He didn't say the SBC was 60 degree. He was speaking of the v6's not being the same externally, as SBC's are.

As to putting a GN engine in a 3rd gen, that's discussed in the home page FAQs https://www.thirdgen.org/newdesign/faq/thirdgen.shtml , about a forth of the way down the page.

 

Oh... well, just the way its worded was a bit confusing.

 

Agreed, but you stopped too soon.

Repunctuated, with additional words added in italics for clarification, it would be: "The only engines that will drop right in + tuning are the 2.8-3.1-3.4, reason is is they are all 60* engines. Just like the SBC, where the 305-350-400 are all the same on the outside, the inside of the larger 60 degree engines are bored/stroked differently to make the extra cubes."

 

I know, I just quoted the way I read it... i just read it wrong. I got it now

* Sorry this turned into English class, Matt