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Manifold Exhaust Kit for Mercruiser GM 454 7.4L 502 8.2L V8 4 Inch Exhaust

  • Part #: BARBB4MERMK


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Exhaust Manifold Kit for Mercruiser and many Marine Power Big Block V8 454/502 CID Center Riser with 4 Inch exhaust. Fits all 1987 and Newer

Used on most 454 7.4 Liter engines 1987 and later.

4 Inch means the exhaust hose size that fits the riser is 4 inch inside diameter.

This kit includes:

2 - Barr # MC-20-44354 4" Risers
2 - Barr # MC-1-89011 Manifolds
Cross Reference Component Part Numbers
Mercruiser Manifold: 807078A6, 89011A8
Riser: 807988A2, 44354A3
Osco Manifold: 9011
Riser: 4354
Barr Manifold: MC-1-89011
Riser: MC-20-44354X
GLM Manifold: 51240
Riser: 51140
Sierra Manifold: 18-1957-1
Riser: 18-1976-1
Mallory Manifold: 9-40506
Riser: 9-40559
HGE Manifold: 9011
Riser: 4354

Cast Iron Manifolds and Risers come with a 3-year limited warranty!

Extra Shipping applies for Manifold/Riser Kits: $59 for states east of the Mississippi, $79 for states west of the Mississippi

Shipping outside of the contiguous US will calculated at checkout.

BARR American made

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