Manley Superior Head Bolt Set - SB Chevy Tongue Jack Doug Thorley Tri Y Header

Doug Thorley Tri Y Header

Controllable Torque

one cover is solid without holes and one cover includes two fully welded

AFCO 16" electric cooling fan

Manley Superior Head Bolt Set - SB Chevy Tongue Jack Doug Thorley Tri Y HeaderHead Bolts have under head radius, to prevent premature stretch and failure. Superior 190, 000 PSI material delivers greater strength than competitive bolts. Bolts are for small block Chevys and are longer than stock for use with head bolt washers (#MAN42102 34 sold separately). One package services one cylinder head (two packages required to complete engine). Manley Performance high performance and racing engine parts have been powering winners since