Prop Nuts & Hardware - Johnson Evinrude

460 Ford Cast Aluminum Performance Exhaust System - Manifolds Only, (Includes Bolts & Gaskets)

The long awaited and much anticipated new Performance Ford center rise exhaust systems are now available from Hardin Marine. Hardin adapted the same technology used to develop the powerful manifold systems found on Mercury Racing’s HP500 and 540 Bulldog engine packages and integrated that individual separated runner design into this new Big Block Ford exhaust system. Hardin knew while perfect for direct replacement these also compliment today’s larger custom Ford 500 CID plus engines. These engines require an exhaust system that not only scavenges, but can also expel the massive amounts of exhaust created by these larger engines while reducing exhaust back pressure to near non-existent levels. These manifolds are cast from pure T356 aluminum and then heat treated to a T6 condition. The final steps include hard anodizing for corrosion resistance and a gloss powder coated for a stunning appearance. Individual exhaust ports are cooled by a balanced and even water flow thru the manifold. Exhaust tailpipes are available in a standard exit or custom applications and are constructed from quality 316L stainless steel.

• 35" Overall Width on stock heads.
• 29-1/2" Exhaust Center to Center on stock heads.
• 8" Tall from Exhaust center-line to top of manifold on stock heads.
• 12-3/4" Tall from Exhaust center-line to top of riser on stock heads.

460 Ford Cast Aluminum Performance Exhaust System with Below Swim Platform Low Port Tailpipes

The long awaited and much anticipated new Performance Ford center rise exhaust systems are now available from Hardin Marine. Hardin adapted the same technology used to develop the powerful manifold systems found on Mercury Racing’s HP500 and 540 Bulldog engine packages and integrated that individual separated runner design into this new Big Block Ford exhaust system. Hardin knew while perfect for direct replacement these also compliment today’s larger custom Ford 500 CID plus engines. These engines require an exhaust system that not only scavenges, but can also expel the massive amounts of exhaust created by these larger engines while reducing exhaust back pressure to near non-existent levels. These manifolds are cast from pure T356 aluminum and then heat treated to a T6 condition. The final steps include hard anodizing for corrosion resistance and a gloss powder coated for a stunning appearance. Individual exhaust ports are cooled by a balanced and even water flow thru the manifold. Exhaust tailpipes are available in a standard exit or custom applications and are constructed from quality 316L stainless steel.

• 35" Overall Width on stock heads.
• 29-1/2" Exhaust Center to Center on stock heads.
• 8" Tall from Exhaust center-line to top of manifold on stock heads.
• 12-3/4" Tall from Exhaust center-line to top of riser on stock heads.

460 Ford Cast Aluminum Performance Exhaust System with Magnum Choice Short Wet Offshore Tailpipes

The long awaited and much anticipated new Performance Ford center rise exhaust systems are now available from Hardin Marine. Hardin adapted the same technology used to develop the powerful manifold systems found on Mercury Racing’s HP500 and 540 Bulldog engine packages and integrated that individual separated runner design into this new Big Block Ford exhaust system. Hardin knew while perfect for direct replacement these also compliment today’s larger custom Ford 500 CID plus engines. These engines require an exhaust system that not only scavenges, but can also expel the massive amounts of exhaust created by these larger engines while reducing exhaust back pressure to near non-existent levels. These manifolds are cast from pure T356 aluminum and then heat treated to a T6 condition. The final steps include hard anodizing for corrosion resistance and a gloss powder coated for a stunning appearance. Individual exhaust ports are cooled by a balanced and even water flow thru the manifold. Exhaust tailpipes are available in a standard exit or custom applications and are constructed from quality 316L stainless steel.

• 35" Overall Width on stock heads.
• 29-1/2" Exhaust Center to Center on stock heads.
• 8" Tall from Exhaust center-line to top of manifold on stock heads.
• 12-3/4" Tall from Exhaust center-line to top of riser on stock heads.

460 Ford Cast Aluminum Performance Exhaust System with Standard Wet Offshore Tailpipes

The long awaited and much anticipated new Performance Ford center rise exhaust systems are now available from Hardin Marine. Hardin adapted the same technology used to develop the powerful manifold systems found on Mercury Racing’s HP500 and 540 Bulldog engine packages and integrated that individual separated runner design into this new Big Block Ford exhaust system. Hardin knew while perfect for direct replacement these also compliment today’s larger custom Ford 500 CID plus engines. These engines require an exhaust system that not only scavenges, but can also expel the massive amounts of exhaust created by these larger engines while reducing exhaust back pressure to near non-existent levels. These manifolds are cast from pure T356 aluminum and then heat treated to a T6 condition. The final steps include hard anodizing for corrosion resistance and a gloss powder coated for a stunning appearance. Individual exhaust ports are cooled by a balanced and even water flow thru the manifold. Exhaust tailpipes are available in a standard exit or custom applications and are constructed from quality 316L stainless steel.

• 35" Overall Width on stock heads.
• 29-1/2" Exhaust Center to Center on stock heads.
• 8" Tall from Exhaust center-line to top of manifold on stock heads.
• 12-3/4" Tall from Exhaust center-line to top of riser on stock heads.

OMC 460 Ford Replacement Cast Aluminum Exhaust System - 4" or 3.5"

These New Premium Direct bolt 460 Ford manifolds are the ultimate solution for the person looking for a direct bolt on style manifold system for early OMC style applications. Direct bolt on means no leaking adapters or odd hardware to fuss with. Hardin Marine has produced Performance Ford center rise exhaust systems for decades and now is adapting the performance style manifolds and riser to replace OEM OMC Systems . Two systems are offered with one using the 3.5" Y-Pipe hose connection the other a 4" Y-pipe connection.

Hardin adapted the same technology used to develop the powerful manifold systems found on Mercury Racing’s engines to the Ford 460. Individual separated runner port designs provide for improved exhaust efficiency while reducing exhaust back pressure.These manifolds are cast from pure T356 aluminum and then heat treated Included features such as hard anodizing for corrosion resistance and a gloss powder coated for a stunning appearance. Manifolds feature individual port water inlets for balanced even water flow thru the manifold. These exhaust systems require some customer supplied exhaust measurements. Allow 5-6 week lead times to build tailpipesl. (Not for use on Cobrajet heads)

• 35" Overall Width on stock heads.
• 29-1/2" Exhaust Center to Center on stock heads.
• 8" Tall from Exhaust center-line to top of manifold on stock heads.
• 12-3/4" Tall from Exhaust center-line to top of riser on stock heads.

Interchanges/Replaces

GLM

• 22340

Johnson/Evinrude Outboard

• 175268

Mallory

• 9-73951

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3707	GLM 22170 Johnson/Evinrude Outboard 319891	1	Prop Nut		N/A
18-3743	GLM 22130 Johnson/Evinrude Outboard 320785	1	Cotter Pin		N/A
18-4232	GLM 22260 Johnson/Evinrude Outboard 323943	1	Prop Spacer		N/A

Interchanges/Replaces

GLM

• 22350

Johnson/Evinrude Outboard

• 175267

Mallory

• 9-73952

OMC Stern Drive

• 175267

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3705	GLM 22150 Johnson/Evinrude Outboard 314503 Mallory 9-73903 OMC Stern Drive 314503	1	Prop Nut		N/A
18-3742	GLM 22120 Johnson/Evinrude Outboard 314502 OMC Stern Drive 314502	1	Cotter Pin		N/A
18-4228	GLM 22250 Johnson/Evinrude Outboard 315810 OMC Stern Drive 315810	1	Prop Spacer		N/A

Interchanges/Replaces

GLM

• 22200

Johnson/Evinrude Outboard

• 175266

Mallory

• 9-73953

OMC Stern Drive

• 175266

List of Containing Parts

Sierra Item #	OE/Competitor #	Quantity	Description	Image	Comments
18-3708-1	GLM 22185 Johnson/Evinrude Outboard 398042 5008966 OMC Stern Drive 3850984 398042 Volvo Penta 3850984	1	Prop Nut & Keeper		N/A
18-3741	GLM 22110 Johnson/Evinrude Outboard 309955 OMC Stern Drive 309955	1	Cotter Pin		N/A
18-4231	GLM 22190 Johnson/Evinrude Outboard 320570 332118 Mallory 9-73905 OMC Stern Drive 320570 332118	1	Prop Spacer		N/A

Interchanges/Replaces

GLM

• 22190

Johnson/Evinrude Outboard

• 320570
• 332118

Mallory

• 9-73905

OMC Stern Drive

• 320570
• 332118