jkmoore
New Member
Any advice on where to buy manifolds for 454 7.5
Exhaust manifold for 7.4
- Thread starter jkmoore
- Start date
- Nov 12, 2006
- 5,334
- Boat Info
- 1999 Sea Ray 330DA
Twin 7.4 MPI (310 propshaft HP) V-drives
- Engines
- Twin Mercury Marine marinized 7.4L L-29 V8s
Cast iron block w 4-bolt mains
Either get OEM or get one of those stainless ones from Australia that guy on this site sells. If you are going to keep the boat more than 5 or 6 years, the stainless will pay for itself.