Cylinder head Question

[TheGasMan]

Does the TRX have the same cylinder heads as the Durango/Trackhawk/2018+ hellcat’s/demon/Demon170?

 

[GNBRETT]

Not the same as the Demon 170 but the others are the sorta the same. The TRX has a few less HP due to the longer exhaust required. The oil pan is thicker and larger on the TRX with different windage.

The original Demon would have the same heads as the Redeye/Super stock.

The heads on the Demon 170 are similar to the Redeye but not exact and way different than Hellcat headst. The 170 heads have about 40% more clamping force with better studs. They also have nitrate coated intake valves and ugraded fasteners.

The Hellcat head vs Redeye head is slightly different. The Redeye head will have better retainers and valves and better cooling of the rocker arms and the sodium filled intake valves that can withstand heat better.

 

[bennydodge]

TRX also has cast iron exhaust manifolds instead of the shorty header-style that's on the cars.

 

[GNBRETT]

Yea, thats where the 5 hp is lost im told......lol

TRX also has cast iron exhaust manifolds instead of the shorty header-style that's on the cars.

 

[bennydodge]

Lol, right, and of course the Durango Hellcat is rated at 710 hp, which also has the cast iron manifolds..

 

[TheGasMan]

Not the same as the Demon 170 but the others are the sorta the same. The TRX has a few less HP due to the longer exhaust required. The oil pan is thicker and larger on the TRX with different windage.

The original Demon would have the same heads as the Redeye/Super stock.

The heads on the Demon 170 are similar to the Redeye but not exact and way different than Hellcat headst. The 170 heads have about 40% more clamping force with better studs. They also have nitrate coated intake valves and ugraded fasteners.

The Hellcat head vs Redeye head is slightly different. The Redeye head will have better retainers and valves and better cooling of the rocker arms and the sodium filled intake valves that can withstand heat better.

I’m still kind of clueless on the details/specs of the TRX And demon170 heads. Is there specs available online anywhere that you know of?

 

[GNBRETT]

TRX has the same heads as the Hellcat. https://www.stellpower.com/news-2023/detail-on-how-the-demon-170-hemi-differs-from-the-redeye-hemi/

I’m still kind of clueless on the details/specs of the TRX And demon170 heads. Is there specs available online anywhere that you know of?

 

[TheGasMan]

TRX has the same heads as the Hellcat. https://www.stellpower.com/news-2023/detail-on-how-the-demon-170-hemi-differs-from-the-redeye-hemi/

Will or are these heads available to purchase like the redeye heads?

 

[Unholy707]

Just stick with the hellcat heads I sent mine to 7500 rpm at the track they’re fine 😅

 

[GNBRETT]

U can buy them on flebay for like $1800.

Will or are these heads available to purchase like the redeye heads?