RB30 Timing Cover Extensions
Select either the extension on it own or the full complete kit.
RB30 Twin cam timing cover extension
Due to the added deck height of the mighty RB30 block, the timing covers are left with a gap in the middle when a twin cam head is fitted (RB25, Neo or RB26)
This extension plate fills that gap between the 2 covers.
You will require the stock twin cam lower timing cover from an RB25/neo/26 and the extension can be spot welded or pop riveted onto the lower nissan timing cover.
Note, if using rivets, take notice of the depth of the rivet as long rivets may interfere with the timing belt causing belt failure.
The extension made from stainless steel, and is supplied pre-folded as pictured.
*some lower covers may require light manipulation of the joining lip to get a very snug fitment.
When fitting a twin cam head to an RB30 block to make an RB30det, the RB30 has a taller deck height, meaning that the timing covers no longer match up in the middle, this kit fixes that issue.
The kit is made up of a new Nissan lower timing cover and has had the Boost Doc timing extension welded on, and its all finished with a fresh coat of black paint.
Shipping cost is based on weight and destination. Just add products to your cart and use the Shipping Calculator to see the shipping price.
Boost Doc prides itself on customer service, and we want happy customers and will provide a repair, replacement or refund for faulty products.
We will not refund if you simply changed your mind, found it cheaper somewhere else, decided you did not like the purchase or had no use for it.
But you can choose a refund or replacement if an item is found to be faulty.