
OVERVIEW
Add strength to your SR block with our SR20 Billet Main Caps. Caps are machined from pure 4140 chromoly steel.
New Mazworx SR20 Billet Main caps accept standard size main studs.
The Block does not need to be machined to accept 1/2" main studs. A line bore/hone will be needed once these are installed.
**1/2" main studs optional add on**
Recently Viewed
Check out our Universal Parts Picker and explore even more of your favorite products—all in one place.
Same Day Fulfilment On in Stock Items!
2PM EST cutoff*
RETURNS
30 days return policy
Check our store for latest items
New products updated daily!
Mon - Fri Customer service
10am - 5pm