The Texas Speed LS7 Rocker Arm Bolt TSP-1035 is a specialty fastener for securing rocker arms on GM LS7 cylinder heads, sold as a pair. Each bolt is M8 x 1.25 thread with a 35mm under head length (43mm overall) and a 5/16" 12-point head, finished in black oxide for corrosion protection.
The shorter 35mm length is specific to the LS7 head's rocker stand design, so these are not interchangeable with the 52mm TSP-1052 bolts for LS1 and LS3 heads. Texas Speed offers them for high-performance LS7 builds and as replacements during a cam swap, trunnion upgrade or head installation. Installation instructions are published by Texas Speed for this part number.
Specifications
- Application: GM LS7 cylinder heads
- Thread: M8 x 1.25
- Under head length: 35mm (43mm overall length)
- Head style: 5/16" 12-point
- Finish: Black oxide
- Quantity: Sold as a pair (2 bolts)
- Installation instructions: Published by Texas Speed for part TSP-1035
Vehicle Applications
Chevrolet Camaro
- 2014 Chevrolet Camaro — LS7 only
- 2015 Chevrolet Camaro — LS7 only
Chevrolet Corvette
- 2006 Chevrolet Corvette — LS7 only
- 2007 Chevrolet Corvette — LS7 only
- 2008 Chevrolet Corvette — LS7 only
- 2009 Chevrolet Corvette — LS7 only
- 2010 Chevrolet Corvette — LS7 only
- 2011 Chevrolet Corvette — LS7 only
- 2012 Chevrolet Corvette — LS7 only
- 2013 Chevrolet Corvette — LS7 only
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
What cylinder heads does the Texas Speed TSP-1035 rocker arm bolt fit?
Texas Speed lists it for GM LS7 cylinder heads. It is an M8 x 1.25 bolt with a 35mm under head length and a 5/16" 12-point black oxide head.
How many bolts are in the TSP-1035 package?
It is sold as a pair, so each order contains two bolts. Order enough pairs to cover every rocker arm being fastened on the LS7 heads.
Can I use TSP-1035 bolts on LS1 or LS3 heads?
No. The LS7 bolt has a 35mm under head length. Texas Speed sells the TSP-1052 bolt with a 52mm under head length for LS1 and LS3 cylinder heads.
What vehicles came with LS7 cylinder heads?
Texas Speed's fitment for this bolt lists the 2006 to 2013 Chevrolet Corvette and the 2014 to 2015 Chevrolet Camaro. Only the LS7-equipped versions of those models apply.

