Description On offer here is a set of 4 reproduction exhaust manifold bolt “French locks”.These are an exact copy of Holden part number 7437450 , group #3.275 – Plate -Bolt lock. These were used in production on all Holden 253/4.2l and 308/5.0l V8`s fitted with cast manifolds from HT-VL. A very inexpensive way to add a “Factory Authentic” look to your engine bay as well as stopping your manifold bolts from coming loose – as was their original use !
