Login  /  Register  
  Home  -  Forum  -  Classifieds  -  Photos  -  Links     

 Return to Index  

Some pics

February 11 2018 at 10:18 AM

Ross  (Login Bad427stang)

Response to Re: I’ll be running BBMs

Bore size is perfect circle, just under 4.250

[linked image]

Uncompressed thickness is about .051, not squeezing too hard.

[linked image]

The key is to see whether or not the fire ring is fully supported around the chamber. On my D2s, the fire ring fell just barely unsupported and may or may not have lived, but the D2s have some mismatch compared to a 4.05 bore

My guess is they won't work though, with my calibrated eyeball, comparing the sealing surface between the cylinders and a picture below of the BBMs, it looks like the fire ring will hang into the chamber

[linked image]
[linked image]
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 445 cid FE, headers, RPM intake, 1000 HP series Holley, 4 speed

This message has been edited by Bad427stang on Feb 11, 2018 10:25 AM

 Respond to this message