makebrickgovroom
New member
- Joined
- Apr 15, 2020
- Location
- Colorado
So, the time has come -- a b21ft potential build
perhaps a financial mistake......
The rundown:
motor pull. i don't wanna take the trans with the block, just to make working in a driveway a little easier. i'll unbolt the bellhousing and starter, and once its out, the flywheel -- missing anything other details? where are the ideal mounting points for the motor (for the hoist)?
overbore and head work.
Guys at AMS machine supply recommended bore, and i don't disagree. huge lip at the start of the combustion chamber (my fingernail easily catches) as well as some corrosion that needs to be addressed.
Pistons? I'd like to preserve the low scr nature of the b21ft, just cause i like lots and lots of boost, and wouldn't mind some more.
Rods. Would it be safe to assume that i wouldn't have a problem running the m rods? the guys at the shop suggested getting forged rods (i know there's some disagreement around here that m rods are forged, but lets just say they are for the sake of argument), but that seems unnecessary (assuming they're in good condition) and a little too expensive, as i'm already going to dig a little deep into my budget for this.
Head work. Head mill -- not a big deal. Valve corrosion? What the ****? Teeny spots of rust and gunk on cyl. 2&3 valves. What to do about that? Attempt to clean it myself or...? Guys at the shop also suggested a valve job, $400. I about **** myself. I wanna avoid that at pretty much all costs, so if I need to get a junkyard head for like $50 i'd rather spend that kind of money.
Now.... considering all that.....
Do I do it? Or do I go to a upull (thanks bobxyz) and just get a junkyard motor?
If I go through with the build, based on the sage advice from the volvo gods, i'll maybe post a thread about the actual build and we can all cringe at a kid putting together an engine for the first time thanks for reading!
perhaps a financial mistake......
The rundown:
motor pull. i don't wanna take the trans with the block, just to make working in a driveway a little easier. i'll unbolt the bellhousing and starter, and once its out, the flywheel -- missing anything other details? where are the ideal mounting points for the motor (for the hoist)?
overbore and head work.
Guys at AMS machine supply recommended bore, and i don't disagree. huge lip at the start of the combustion chamber (my fingernail easily catches) as well as some corrosion that needs to be addressed.
Pistons? I'd like to preserve the low scr nature of the b21ft, just cause i like lots and lots of boost, and wouldn't mind some more.
Rods. Would it be safe to assume that i wouldn't have a problem running the m rods? the guys at the shop suggested getting forged rods (i know there's some disagreement around here that m rods are forged, but lets just say they are for the sake of argument), but that seems unnecessary (assuming they're in good condition) and a little too expensive, as i'm already going to dig a little deep into my budget for this.
Head work. Head mill -- not a big deal. Valve corrosion? What the ****? Teeny spots of rust and gunk on cyl. 2&3 valves. What to do about that? Attempt to clean it myself or...? Guys at the shop also suggested a valve job, $400. I about **** myself. I wanna avoid that at pretty much all costs, so if I need to get a junkyard head for like $50 i'd rather spend that kind of money.
Now.... considering all that.....
Do I do it? Or do I go to a upull (thanks bobxyz) and just get a junkyard motor?
If I go through with the build, based on the sage advice from the volvo gods, i'll maybe post a thread about the actual build and we can all cringe at a kid putting together an engine for the first time thanks for reading!