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Part fits the following years:1967


1967 Grand Prix Cylinder Head Studs 350/400/428 (Hex Head)

Part# G221348


Mfg# 190-4002

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SAVE: $16.96 Retail: $181.95

OPGI Price: $164.99

Part Type: (P) High Performance, designed to improve performance
Years: Sold As: SET
2017 Grand Prix Catalog Page: 238

Made from superior grade steel

  • NOTE1: These high-performance items are not eligible for any further discounts or promotional pricing.

For starters, ARP uses a premium-grade 8740 alloy that is rated far superior to even aircraft quality alloys. Then, each stud is placed vertically in a special racking system and heat-treated. All studs are ground to make them as close to perfectly concentric as possible. Because of this attention to detail and manufacturing process, that's geared towards such exacting tolerances, you will notice that gaskets and cylinder heads literally glide into position and are perfectly aligned—something that won't happen with inferior-quality head studs. See for yourself! Today's top engine builders say ARP head studs are clearly the finest in the market.

G221354 – 400 CID with Edelbrock aluminum heads (12-pt.) G221348 – ’67 400-428 and 350, ’68-77 400-428, 400 RA II and IV, 455 (hex) G221349 – ’67 400-428 and 350, ’68-77 400-428, 400 RA II and IV, 455 (12-pt.) G221350 – H.O. and super-duty (hex) G221351 – H.O. and super-duty (12-pt.)

Make & ModelYear RangeApplication Details
Pontiac Bonneville1967 350/400/428 (Hex Head)
Pontiac Bonneville1968-1977 400/428/455 w/D-Port Head (Hex Head)
Pontiac Catalina1967 350/400/428 (Hex Head)
Pontiac Catalina1968-1977 400/428/455 w/D-Port Head (Hex Head)
Pontiac Grand Prix1967 350/400/428 (Hex Head)
Pontiac Grand Prix1968-1977 400/428/455 w/D-Port Head (Hex Head)
Pontiac GTO1964-1967 400-428
Pontiac GTO1968-1973 400-428, 400 RA II and IV, 455
Pontiac LeMans1964-1967 400-428
Pontiac Tempest1964-1967 400-428
California Prop 65 Icon WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
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