Blueprint crate engine question

[poorhouse]

Hey guys, got a hold of a 2015 Blueprint 408 and need to find out if l need an externally balanced flexplate. Any info would be great, thanks.

 

[poorhouse]

failed to mention will bolt to a 727. any recommendations would be great, thanks

 

[Heywodja]

@Johnny Mac Maybe Johnny can assist, he works at Blueprint and is a member here..

 

[poorhouse]

@Johnny Mac Maybe Johnny can assist, he works at Blueprint and is a member here..

thank you

 

[Bobzilla]

Read post 7 in this thread.

Flexplate and TC for a BluePrint 408 Magnum

 

[poorhouse]

Read post 7 in this thread.

Flexplate and TC for a BluePrint 408 Magnum

ok

 

[Johnny Mac]

Hey guys, got a hold of a 2015 Blueprint 408 and need to find out if l need an externally balanced flexplate. Any info would be great, thanks.

Assuming your converter is neutral balanced, as most aftermarket are, you need this flexplate. Chrysler SB Steel SFI Flex Plate - LA 360 SB EXTERNAL BALANCE 727 and 904 - Chrysler Compatible

 

[poorhouse]

Assuming your converter is neutral balanced, as most aftermarket are, you need this flexplate. Chrysler SB Steel SFI Flex Plate - LA 360 SB EXTERNAL BALANCE 727 and 904 - Chrysler Compatible

thank you J MAC

 

[poorhouse]

thank you J MAC

anything wrong with using a knockoff?

 

[poorhouse]

Assuming your converter is neutral balanced, as most aftermarket are, you need this flexplate. Chrysler SB Steel SFI Flex Plate - LA 360 SB EXTERNAL BALANCE 727 and 904 - Chrysler Compatible

anything wrong with using a knockoff?

 

[RustyRatRod]

anything wrong with using a knockoff?

I'm unsure anybody makes one. But I don't think anything would be wrong with it as long as it was the same style. You should verify 100% that's what you need though.

 

[Gator]

Assuming your converter is neutral balanced, as most aftermarket are, you need this flexplate. Chrysler SB Steel SFI Flex Plate - LA 360 SB EXTERNAL BALANCE 727 and 904 - Chrysler Compatible

Do not forget the externally balanced Harmonic Balancer and if not you will have one heck of a vibration.

 

[poorhouse]

Do not forget the externally balanced Harmonic Balancer and if not you will have one heck of a vibration.

got it

 

[poorhouse]

I'm unsure anybody makes one. But I don't think anything would be wrong with it as long as it was the same style. You should verify 100% that's what you need though.

DODGE Summit Racing SUM-G124SFI Summit Racing™ SFI-Approved Flexplates | Summit Racing

 

[Newbomb Turk]

DODGE Summit Racing SUM-G124SFI Summit Racing™ SFI-Approved Flexplates | Summit Racing

View attachment 1716493351

That’s fine.

 

[poorhouse]

I'm unsure anybody makes one. But I don't think anything would be wrong with it as long as it was the same style. You should verify 100% that's what you need though.

looks darn close

 

[Johnny Mac]

anything wrong with using a knockoff?

Using a flexplate made by "lord knows who" would be a really poor $90 to try and save in my opinion, when the manufacturer that makes the engine, sells one balanced and checked, again to the correct spec. On a new engine install, if you find a vibration, I would sure like to know I'm not pursuing a "store brand" to help diagnose. Not dogging any reseller or WD, but just my opinion.

We have customers call back with driveline vibrations and brand X flywheel/flexplates, and we make them send in their flywheel or flexplate, we spin them up here, and they aren't Even close.

 

[Johnny Mac]

Do not forget the externally balanced Harmonic Balancer and if not you will have one heck of a vibration.

Harmonic Balancer - Chrysler Compatible - 273, 318, 340, 360 and 408

 

[Bodyperson]

Hey guys, got a hold of a 2015 Blueprint 408 and need to find out if l need an externally balanced flexplate. Any info would be great, thanks.

Thats a pretty old engine. Who knows what it's been through. May have been internally balanced by now. What does the damper look like?

 

[poorhouse]

Harmonic Balancer - Chrysler Compatible - 273, 318, 340, 360 and 408

l'll order one

 

[poorhouse]

Thats a pretty old engine. Who knows what it's been through. May have been internally balanced by now. What does the damper look like?

haven't pulled it yet

 

[RustyRatRod]

DODGE Summit Racing SUM-G124SFI Summit Racing™ SFI-Approved Flexplates | Summit Racing

View attachment 1716493351

Yeah, that'll do it, if that's what it needs.

 

[RustyRatRod]

Thats a pretty old engine. Who knows what it's been through. May have been internally balanced by now. What does the damper look like?

EXACTLY why I am recommending he verify what he has.

 

[Tsully]

Thats a pretty old engine. Who knows what it's been through. May have been internally balanced by now. What does the damper look like?

He also says he has no idea as it’s still in whatever it’s in!

So my question is… what’s it’s in? Car, truck… is an auto or manual behind it now?

If it’s an auto now, chances are it’s a 727 and if so, why not just get everything you need when you pull it, if the guy will allow it!

 

[furrystump]

904 and 727 are different, make sure you get the correct one. 904 is smaller in diameter. The starter on a 904 is slightly in a different position. 904 dust cover, 727 case.