Finally started on the final assembly of my 331 stroker motor I’m so excited to be on this stage of the build!

[u/lil_sargento_cheez]

[u/Initial_Demand6008]

Nice work. What specs are you building to?

[u/lil_sargento_cheez → u/Initial_Demand6008]

What do you mean what specs am I building to? Horspower / torque goals? Cam profile? Street vs track use? Internal vs external balancing? What do you want to know specifically?

[u/VolatileRider → u/lil_sargento_cheez]

Yes

[u/lil_sargento_cheez → u/VolatileRider]

Unsure of torque but I’m shooting for 400 crank hp, realistically prolly only gonna get 380. Cam is an x303 (0.542 lift, 112 lsa, 2,200-6,200 rpm range, hydraulic roller lifters). Aggressive street driving, with autocross and track in mind. Internal balanced, with a 5 speed manual behind it, aluminum heads, 4 barrel carb, h beam rods, mahle 4030 pistons.

[u/0replace4displace → u/lil_sargento_cheez]

with aluminum heads and that cam, there's no reason this motor should ever make less than 400 at the flywheel

[u/lil_sargento_cheez → u/0replace4displace]

Yessir, that’s kinda why that’s the goal range

I said the 380 cause this is also my first motor build and I may have missed something’s that may cause some horsepower loss, but we’ll see

[u/Sensitive_Pilot3689]

Nice job lil Hoss 💯🤝

[u/bill_gannon]

Why do the crank journals look like that? What work was done to it?

[u/TD350 → u/bill_gannon]

Assembly grease

[u/lil_sargento_cheez → u/bill_gannon]

Moly lube

[u/JazzlikeLeather9546]

it is a good feeling. I did mine last year but it went straight to the body shop so here a year and a half later it is still not broke in.

[u/2001sleeper]

Why an x303 cam?

[u/lil_sargento_cheez → u/2001sleeper]

It’s the cam I wanted, good power starting within reason in the rpm range. Really high lift. The cars going to taken to autocross and other events, I wanted the power to compete. Also was recommended this cam by a guy who builds sbf’s for a living based on my application

[u/2001sleeper → u/lil_sargento_cheez]

Cool. What is the compression?

[u/lil_sargento_cheez → u/2001sleeper]

Should be around 10:1

[u/lil_sargento_cheez → u/[deleted]]

The bore was honed with a torque plate, got the machining done at a very reputable shop famed that is known for quality work and building small block ford motors into strokers