Using new head bolts when performing a cylinder head installation is always a good idea however, on late-model engines that came from the factory with TTY (torque-to yield) head bolts, replacement is an absolute necessity. TTY bolts are designed to exert the maximum clamping force for a tight head gasket seal, however they permanently stretched and could fail if re-used.
AM Gen: 95-96 Humm V8, Avanti: 81-85 II V8, 87-91 II V8, 65-69 II V8, 68-69 II V8, 69-72 II V8, 77-80 II V8, 73-76 II V8, Bizzarr: 65-69 GT Ameri V8, 65-69 GT Ameri V8, 65-69 GT Strada 5300 V8, Buick: 81 Cntry V8, 77-81 Cntry V8, 77-79 Cntry V8, 91 Comm Chass V8, 92-96 Comm Chass V8, 82 LeSab V8, 78 LeSab V8, 81-82 Regal V8, 77-80 Regal V8, 82-87 Regal V8, 77 Regal V8, 91 Roadmstr V8, 92-96 Roadmstr V8, 77-79 Skylk V8, 77-79 Skylk V8, Cadi: 91-92 Brougham V8, 90-92 Brougham V8, 92-96 Comm Chass V8, 99-00 Escal V8, 93-96 Fltwood V8, Check: 66-68 Aerobus V8, 69-74 Aerobus V8, 69 Dlx V8, 69-70 Dlx V8, 80-82 Marath V8, 65-67 Marath V8, 68 Marath V8, 77-78 Marath V8, 65-69 Marath V8, 68-69 Marath V8, 69-79 Marath V8, 69 Taxi V8, 69-74 Taxi V8, Chevy: 56-57 3100 V8, 57-59 3100 V8, 59 3B V8, 59 3C V8, 59 3D V8, 59 3E V8, 59 3F V8, 59 3G V8, 56-57 Bel Air V8, 81 Bel Air V8, 57-67 Bel Air V8, 68 Bel Air V8, 81 Bel Air V8, 62-69 Bel Air V8, 68-69 Bel Air V8, 69-75 Bel Air V8, 70-75 Bel Air V8, 58-67 Bisc V8, 68 Bisc V8, 62-69 Bisc V8, 68-69 Bisc V8, 69-72 Bisc V8, 70-72 Bisc V8, 69-73 Blazer V8, 87 Blazer V8, 69-74 Blazer V8, 87-94 Blazer V8, 59-61 Brookwd V8, 69 Brookwd V8, 71-72 Brookwd V8, 69 Brookwd V8, 69-72 Brookwd V8, 70-72 Brookwd V8, 77-86 C10 V8, 75-80 C10 V8, 82-86 C10 V8, 76-80 C10 V8, 60-67 C10 PU V8, 68-73 C10 PU V8, 66-69 C10 PU V8, 68 C10 PU V8, 69-74 C10 PU V8, 67 C10 Suburb V8, 68-73 C10 Suburb V8, 77-86 C10 Suburb V8, 67-69 C10 Suburb V8, 68 C10 Suburb V8, 69-86 C10 Suburb V8, 88-99 C1500 V8, 88-99 C1500 V8, 92-99 C1500 Suburb V8, 77-86 C20 V8, 75-86 C20 V8, 76-80 C20 V8, 60-67 C20 PU V8, 68-73 C20 PU V8, 66-69 C20 PU V8, 68 C20 PU V8, 69-74 C20 PU V8, 67 C20 Suburb V8, 68-73 C20 Suburb V8, 77-86 C20 Suburb V8, 67-69 C20 Suburb V8, 68 C20 Suburb V8, 69-86 C20 Suburb V8, 76-80 C20 Suburb V8, 88-99 C2500 V8, 88-00 C2500 V8, 92-99 C2500 Suburb V8, 78-79 C30 V8, 75-86 C30 V8, 76-79 C30 V8, 60-67 C30 PU V8, 68-73 C30 PU V8, 66-69 C30 PU V8, 68 C30 PU V8, 69-74 C
Documents
Package Information
Orderable Status:YesQuantity:1Package UOM:Smallest Pack (Consumer Level)Package Level GTIN:00023913659103Package Bar Code:023913659103Weight Variance:0.000000000Stacking Factor:0Inner Quantity:0
Extended Information
Country of Origin (Primary):USEmission Code:Legal USHarmonized Tariff Code (HTS):8484100000Harmonized Tariff Code (Schedule B):8484100000Life Cycle Status Code:Available to OrderLife Cycle Status Description:Available to OrderMSDS Required Flag:NoNational Popularity Code:Top 60% of Product Group Sales Value (Units x $, Hits, etc.)National Popularity Description:Top 60% of Product Group Sales Value (Units x $, Hits, etc.)Pallet Layer Maximum:1
Interchange
Fel-Pro:ES72856Magirus:HB33001MAHLE Original:GS33285