Volvo Penta Aq171 C Aq171 A 251 Exhaust Manifold 855434 855503 Dohc 16 Valve on 2040-parts.com

Up for auction is an excellent  condition  Volvo Penta AQ171 A AQ171 C  251 Exhaust Manifold in excellent condition   DOHC 16 Valve  2.5L Volvo Penta 4 Cylinder motors , Casting Number 855434 Volvo Penta Part Number 855503 ,  Water Separator has some rust  nothing that will affect Use or performance . The copper pet cock to drain the water from the exhaust was removed and will need to be replaced  These are Extremely Rare , Volvo No longer makes these manifolds  if you can find New Old Stock Manifolds they are over $2600.00  2.5 liter. .  I will have everything from that motor including Crankshaft rear thrust 86 mm stroke, Pistons and rods listed NO cracks No Repairs in excellent condition , This is ready to go Bolt it on get back in the water ! 

Volvo Penta sold the OHC redblocks as marine engines as well, just like the older OHV engines. Depending on the model the displacement was 2127 (as B21), 2316 cc (same as B23/B230 automotive) or 2490 cc. The engines with 2490 cc displacement, identified as the Volvo Penta AQ151 (8 valve) and AQ171 (dohc 16 valve) models, got a forged crankshaft with a longer stroke (86 mm stroke) together with pistons with a 3 mm (0.1 in) lower compression height. The 2490 cc blocks still had B230 cast in the block. Penta used both the 8 valve and 16 valve cylinder heads. Both the 8V and 16V variants used the same engine block series, the 16V versions didn't use the different block like the automotive B2x4 with balance shafts.

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*We have thousands of Volvo Penta Parts in stock and can accommodate special orders and builds. Due to recent policy changes, Ebay has fallen well below our company standards, as a result we now list only a small portion of our inventory on Ebay, opting instead to focus on the company website and our other more business friendly online and off line sales platforms which are more cost effective for our customers and our company, FreshWaterVolvoPentaParts. Thank you for your continued support!*

                                 
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AQ Series Aq120 AQ125 AQ131 AQ140 AQ145 AQ151 AQ171 230A 230B 250 251 120 125 130 131

145 151 171 230 270 275 280 285 290

Dp Dp-A Dp-B DP-C Dp-D Dp-E Dp-A1 Sp-A Sp-A1 Sp-C Sp-C1 Dp-C1 1.61 2.30 1.95 1.78 2.15 1.89

225 211 231 260 271 A B C D Aq225 aq211 aq231 aq260 aq271