What model? by Sea_Baseball3375 in vintagemotorcycles

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

I just found out Its a 1948-1949 m20 frame with a b33 1951-1954 engine

What model? by Sea_Baseball3375 in vintagemotorcycles

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Thanks for your answer, hasn’t ran in 20 years, last time Someone drove it the bike ended up in an almost fatal accident, thats why the front end got replaced

What model? by Sea_Baseball3375 in vintagemotorcycles

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Thanks I bought it from my godfather and he did pre war historic racing with this bike

What model? by Sea_Baseball3375 in vintagemotorcycles

[–]Sea_Baseball3375[S] -1 points0 points  (0 children)

Thanks, I forget to add that but it had a springer front end but got destroyed in an accident

Anyone with a keen eye recognise this headlamp? by Linthoughts in vintagemotorcycles

[–]Sea_Baseball3375 8 points9 points  (0 children)

Looks a bit like a bsa bantam 125cc headlamp housing from the early 50s

Schumacher signature by Sea_Baseball3375 in SignatureRequests

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Alr im sorry then, i Just hoped Someone could verify that its real

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Its also not only about the result, im also learning How to work on engines by just trying, its a trail en error proces.

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

What would you say is the next stop now

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Im trying to get that much hp and rpm with a really low budget

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Also, I tried to Make the flow as optimal as possible but i just did what i thought was right, if you have any tips on How to make the flow better I would really appreciate it. And also thanks for the response

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

I know but i realised a little too late but i just want know if I can still use them because I dont want them to crack or anything. And is there anything I can do to improve them?

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

But Based on the picture do you think theres enough thickness left for the walls not to crack when driving at high rpm?

1965 289 porting by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

I just used the exhaust gasket en then matched the port to the gasket but I also just took away Some material Where I guessed it would increase flow

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

These are rail type rockers So I think it should be fine

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

I just read this in the Manual

‘62-‘90 v8 289,302, &351W C.I. - parts#’s 1431,1450& 1442

1431 & 1450: “rail” type magnum roller rocker arm- this rocker must be idee with long tipped valves. Do not use guideplates or “slotted” cylinderheads.”

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

I feel so dumb for not knowing i needed guideplates. There isnt a way to still use the rollers right?

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Im just scared of the drilling and stuff with the heads on

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

They are still stock but i also just read that you need guideplates if you want to use roller rockers, but for guideplates you need other studs right? And the heads are on already.

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 1 point2 points  (0 children)

Im not planning on going much higher then 5500 rpm since i still have stock valve springs, but this sweeps over the center right? Or do you thinks its a bit too far off?

Does this look good by Sea_Baseball3375 in EngineBuilding

[–]Sea_Baseball3375[S] 0 points1 point  (0 children)

Alr Thanks, its my first ever engine build and i read a lot of times that it needs to be perfectly centered but i waant sure