|
|
|
07-12-2011, 10:16 AM
|
|||||
|
|||||
|
Rod Rocket
Hi There,
can I fit a 3.875 in stroke crankshaft into a standard sbc 400 block? If so, is there a large amount of clearancing required ? Is there a problem with camshaft clearance? 
|
|
07-12-2011, 10:30 AM
|
||||||
|
||||||
|
Yes, it will fit. I wouldn't go any larger with a Stock 400 Block tho'.
It's only .125" or 1/8" more stroke. You will have less Cam to Rod clearance, which you will have to check & clearance. A Small Base Circle Cam makes it easier but, isn't required. Scat has some nice Stroker clearanced 4340 I-Beam Rods that work well.
|
|
07-12-2011, 10:49 AM
|
|||||
|
|||||
|
Rod Rocket
Thanks for that.
Would you anticipate that I will need to relieve the block at all ?
|
|
07-12-2011, 10:58 AM
|
||||||
|
||||||
|
Yes, it will probably need slight clearancing in the same spots the Factory clearanced for the 3.75" Crank.
A long Zip Tie works well for checking Cam clearance etc.. This is for a 383 but, you can see where the clearance problems are. http://www.chevytech.info/2c42o17.html
|
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| 350 vs 350 rocket | American Muscle | Engine | 36 | 07-07-2009 08:18 PM |
| 403 rocket | eatonde | Engine | 8 | 09-04-2008 09:57 AM |
| p-17 Rocket says Hi Ya All | p-17Rocket | Introduce Yourself | 1 | 10-30-2007 03:05 PM |
| I think it's a 350 rocket | bobby hudson | Engine | 5 | 10-20-2006 07:57 PM |
| Rocket Car | Moby302 | Hotrodders' Lounge | 2 | 12-10-2003 03:38 AM |
