Volvo Penta AQ130 B18 B20 Cylinder Head WANTED
Major Ledfoot that is a pipe hole for a stainless tube that's incorporated in the thermo housing. I have the tube it's removable. It's a ten bolt, pushrod type. A photo of yours will tell me if it can be adapted. Cheers
DinoBru Here are the pics of my B20B head.
This is the area near the thermostat housing. Note there isn't any hole for a sender, but there appears to be a flat which could carefully be drilled.
This is the RH side of the head, where there's a cover plate fitted to B20A and B20B engines (carb).
This is the casting number.
This is the front of the head, where there's a pair of welsh plugs. The bolt on the LH of pic is for an accessory bracket.
That plate can be drilled for pipe and cover plate is where my temp switch goes. There is curves in the orifice between two and three intake pipes.
Major Ledfoot this is the front
Sweet.
So they appear to be the same casting, only drilled differently.
Major Ledfoot Yes !!!! They seem to be a head machinist told me that can be done. That's awesome Major Ledfoot now the 2 most important questions what state do you live in, and are you prepared to part with it.
Major Ledfoot could you please pic the valves and exhaust side that will concrete it Major Ledfoot.
- Edited
DinoBru Sorry, I'm not selling any of my B20 heads. The one I photographed for comparison porpoises is about to head off to the machine shop for the engine rebuild of my 144, once all my new parts finish arriving from Sweden, Germany, and Only Gawd Knows Where.
@paul0075 in CBA might have a spare B20 head. @1971_144GL (also in LST like me) might have a spare he wants to get rid of. In Melbourne, try VolDat. And SA / WA / NT / QLD? No idea who might have old Volvo bits.
PS: Ideally, you'll want a late B20B head, which will already have the 44mm inlet valves like the Penta. B20E heads will have holes drilled for FI; B20A heads might only have the 42mm inlet valves, but have the advantage of more meat on them if they need resurfacing but the 44mm inlets can be made to fit. You will need to get the longer Penta manifold studs.
Major Ledfoot Thanks for the help Major Ledfoot
I have a B20B head, where are you located?
I have a complete 1972 B20A in my workshop in Mt Gambier that is available.
I have to dig a bit to get to it. The head is the same as the B20B photos above, but with lower compression. It does have small valves and a 6-bolt crank, being a 72. I haven't seen it run, but I've been told it was running before it was parked. I did turn it over with a screwdriver when I pulled it about 2019. From memory it had about 130,000 country miles on the clock.
Huh? You're obviously new to the marque. There's a 6-bolt crank (6x bolts in the flywheel) that is all Imperial and wider journal's, or there's the later 74+ crossover metric + Imperial 8-bolt crank. The latter can take the B21 pistons. The 6-bolt is more common, but reputedly suffered from the very remote chance of cracking a gudgeon pin. I suspect that failure was due to uncontrolled detonation.
Either one will do what you want. Either one has the potential, with a lot of head porting, to make decent power numbers.