2000 Explorer 5.0 block vs. other 5.0 blocks

ford_thoroughbred · Jan 29, 2012

found a 5.0 block out of a 00 or 01 explorer and was wondering was there any advantages and disadvantages in this block compared to other 302 blocks or are they basically the same

NIKwoaC · Jan 29, 2012

The block is exactly the same.

Rick 91GT · Jan 30, 2012

yup...same, same, same, same

srtthis · Jan 30, 2012

are you talking block itself or the short block?

TrophyHead · Jan 30, 2012

I heard the cam is different? Besides the obvious gt40 heads and intake.

Mustang5L5 · Jan 31, 2012

Cam is different

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NIKwoaC · Jan 31, 2012

Cam is different but not performance oriented.

Gearbanger 101 · Jan 31, 2012

The pistons are not likely to be the same either?

srtthis · Jan 31, 2012

Gearbanger 101 said:
The pistons are not likely to be the same either?

i believe they are a cast piston in the exploders

Mustang5L5 · Jan 31, 2012

I think they are similar to the 93-95 pistons...if not the same

txstang84 · Jan 31, 2012

Mustang5L5 said:
I think they are similar to the 93-95 pistons...if not the same

Pretty sure you're corret...hypereucraptics...good for mild performance and tight bore clearance; that's about it.

Gearbanger 101 · Jan 31, 2012

txstang84 said:
Pretty sure you're corret...hypereucraptics...good for mild performance and tight bore clearance; that's about it.

Which is it? Traditional cast pistons are not the same as Hypereutectic. I'm leaning towards them being Hypereutectic as that's the direction most engines wen't by the early-90's, but I'm not 100% certain. They may also be dished as well....which would lower compression in comparison to the flat tops found in the Mustang.

txstang84 · Jan 31, 2012

To the best of my knowledge, the pistons in that block should be the same as the last gen Mustang 5.0s...they had the same CR, but better heads.

And you're correct about hypers being different than traditional cast pistons, but only by alloy and size...hyper pistons are still a cast piston any way you slice it, and they still will suffer the same fate if pushed too hard.

2000xp8 · Jan 31, 2012

The pistons are hypers, and in a stock block it has absolutely no effect on how much power you can push through them.
For some reason they get a bad rap, but when is the last time you heard someone say they broke a piston in a stock 302?
If anything they last longer and burn less oil.

txstang84 · Jan 31, 2012

2000xp8 said:
The pistons are hypers, and in a stock block it has absolutely no effect on how much power you can push through them.
For some reason they get a bad rap, but when is the last time you heard someone say they broke a piston in a stock 302?
If anything they last longer and burn less oil.

Hypers get a bad rap because they're still castings and don't play that well with boost or spray. They will take more abuse than regular cast, yes, but still ain't great. And while it's irrelevant for use in a stock block, and they do consume less oil due to closer tolerance, I have seen them crack and burned before...broken no-but cracked or burned yes...

It all depends on your purposes...if you never plan to use a power adder, then sure-they're fine to use...they're lighter anyway. That being said, I think we might've wandered a bit from the OP's purpose in asking the question...

BlownFiveLiter · Jan 31, 2012

ford_thoroughbred said:
found a 5.0 block out of a 00 or 01 explorer and was wondering was there any advantages and disadvantages in this block compared to other 302 blocks or are they basically the same

It has hypereutectic pistons like the 93-95 Mustangs and the remainder of the rotating assembly is identical. Swap in a new cam and oil pump pickup tube from a Mustang and you'd never know the difference between the two.

Gearbanger 101 · Feb 1, 2012

StangGT1995 said:
It has hypereutectic pistons like the 93-95 Mustangs and the remainder of the rotating assembly is identical. Swap in a new cam and oil pump pickup tube from a Mustang and you'd never know the difference between the two.

....until he started experiencing valve float after 4,500RPM because he forgot to upgrade the valve springs along with the camshaft.

txstang84 · Feb 1, 2012

Gearbanger 101 said:
....until he started experiencing valve float after 4,500RPM because he forgot to upgrade the valve springs along with the camshaft.

Something you've experienced before I take it...?

Gearbanger 101 · Feb 1, 2012

txstang84 said:
Something you've experienced before I take it...?

Indeed. The stock Mustang springs are barely adequate enough for the stock cam profile....and the Explorer valve springs are weaker still. I’ve floated the stockers as a stupid teenager on a 302 in more than one occasion in the past.

Add an aftermarket bump stick to the mix like one of the ones mentioned above that's got some additional lift/duration and accompanying RPM range over the stocker and you could end up seeing a lot of it. Not only will you not realize the full benefits said aftermarket camshaft has to offer, but miss a gear and bounce it off the rev limiter enough times and depending on the cam profile, you might even be one of the unlucky ones to make piston to valve contact.

There are area’s one could skimp if money were tight. I wouldn’t suggest valve springs as being one of them.

ford_thoroughbred · Feb 4, 2012

thanks for all the replies

2000 Explorer 5.0 block vs. other 5.0 blocks

ford_thoroughbred

New Member

NIKwoaC

中國製造

Rick 91GT

Mustang Master

srtthis

the guy doing it does every local racers rear end

TrophyHead

Mustang5L5

That is…until I whipped out my Bissell

NIKwoaC

中國製造

Gearbanger 101

Straight Outta Locash

srtthis

the guy doing it does every local racers rear end

Mustang5L5

That is…until I whipped out my Bissell

txstang84

Gearbanger 101

Straight Outta Locash

txstang84

2000xp8

txstang84

BlownFiveLiter

have car, will race....wait, it doesn't run

Gearbanger 101

Straight Outta Locash

txstang84

Gearbanger 101

Straight Outta Locash

ford_thoroughbred

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2000 Explorer 5.0 block vs. other 5.0 blocks

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