Pay in installments of $20.70 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
PRP 1/2 Inch Head and OEM Head Dowels - Nissan RB1 2 inch head dowels Anyone fitting half inch head studs to an RB (should be all rb25 and 30 blocks) They suit OEM replacement also. Need these! We have recently discovered that many people dont use dowels when converting to 1 2 inch head studs, they are absolutely crucial to stop the head from walking around and hurting your gasket seal! The reason you cant run an RB26 type M12 12 mm Stud in an RB20, 25, or 30 is because they are originally 11mm
1/2 inch head dowels
Anyone fitting half inch head studs to an RB (should be all rb25 and 30 blocks) They suit OEM replacement also.
Need these!
We have recently discovered that many people don’t use dowels when converting to 1/2 inch head studs, they are absolutely crucial to stop the head from walking around and hurting your gasket seal!
The reason you can’t run an RB26 type M12 / 12 mm Stud in an RB20, 25, or 30 is because they are originally 11mm thread, And if you drill it out and tap half-inch UNC you need around .7 mm per side of the material to tap through to form a reliable thread.
End result with 12mm thread is that you end up with roughly .4mm at best, threads do pull being grey cast, then you have to pull your whole engine down again and fix the problem but once you have gone and pulled the stud thread through, you have to go to 9/16 which is too big or helicoil/ threadsert.
We see it happen all the time so please don’t risk it and just go a 1/2 inch stud, use these dowels problem solved.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy