SBC Angle plugs heads - any interference with standard VP exhaust manifolds?

roysbb

Cadet
Joined
Oct 31, 2014
Messages
10
Hello, I am considering buying am engine for my boat - it has AFR L98 style heads with angled spark plugs.
Will the spark plugs clear my VP exhaust manifolds?

My boat is about 4 hours and about a week away ....

Thanks, Roy
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,241
Ayuh,.... Welcome Aboard,..... Marine motors run straight plug heads,......

Never tried angle plug heads, but I'm guessin' the plugs won't clear the manifolds,....
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,110
The plugs might clear on 2 but probably won't on the other 2.(on each side)
.Angle of the dangle is wr​ong.
 

K-2

Chief Petty Officer
Joined
Apr 3, 2011
Messages
406
Many do fit with no problems. It depends on the manifolds. The plugs angle towards each other in pairs, so they angle away from the manifold, plus
marine manifolds go up while auto manifolds and headers go down and that's where they interfere with the spark plugs. Marine manifolds are above the plugs.
 
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