What's Up Bronco Lovers

[jayjs]

Hey guys i've got an '80 Bronco XLT w/ a 302 and I'm gonna upgrade to either a 460 or 400. The 460 is complete and the 400 is a crate longblock that I got thinking it was a 460 (I f'd up!). Which do you think would be the best choice based upon swap ease and performance? I know the 460 will require motor mount adapters, but I dont know if the 400 is the same as the small block regarding the engine mounts, do you? Anyways, I finally registered although I've had my Bronco for almost 4 yrs now. I look forward to talking w/ all of you and thanks for any input you may have. John (Brookfield, Illinois)

 

[BLADE262US]

Hello the 460 and the 400 use the same motor mounts and transmission so whichever one you decide to use youll have to do the same changes for both . If you go for the theres no replacement for displacement then id go with the 460 . The 351 m also uses the same motor mounts and transmission as these 2 .

 

[Justshootme84]

I would definitely go with the 460cid, hands down!!! Howdy & Welcome!!!

 

[Ktomek06]

Welcome to BroncoZone! That bronc has a lot of potential :-B ...460!!!! Dont forget to go topless this summer!

 

[shaun94]

Nice clean looking bronco, Welcome. >-

 

[Guest_Indoz]

Welcome to this friendly forum, go for the 460, I run an F100 with 460/C6, she's a powerhouse.

 

[ddspanker]

Hi and welcome!

Just curious, dose the added weight of the big block cause any suspenition problems? I would think that the extra horsepower would be an even swap for the loss of handling a lighter vechile. I say this because I thought of doing it myself.

Bob
Tucson, AZ.

 

[rlynch131]

I would go for the 460!!

Like the other posts, the bell housing and mounts are the same between the 351M/400 ad the 360. I'm not sure how significant the weight difference is though. I don't think it would be significant enough to make a difference. (unless you were comming from a 300 that is)

IMHO the 460 is by far a better performer than the 400, you do have to seriously consider what this will do to your drive train though, as the added torque from a 460 will be painfull to your drive train if not medicated properly. (especially comming from a 302)

Just my 2 cents worth,

Ron
Phoenix, AZ

 

[indoz]

The 302 is 460lbs. and the 460 is 640lbs. The only problem I found when I bought my F100, was that the engine mount restricted the size of the oil filter(about 4 inches space), I opted to put a remote system in, but am still looking for a rotating oil filter adaptor, this would look less messy and be less prone to leaking hoses.