ModelMakeCIDCYL.YearSerial Number470 2bbl.Mercury22441976-19794208730-5520114470 2bbl.Mercury22441980-19825520115-6218036470 2bbl.Mercury22441983-19846218037-6916778170 2bbl.Mercury22441985-19866916779 and up165 / 3.7L.2bbl.Mercury22441987-19896916779 and up485 2bbl.Mercury22441980-19825685394-6218036488 4bbl.Mercury22441983-19846170297-6916778190 4bbl.Mercury22441985-19866916779 and up180 / 3.7LX 4bbl.Mercury22441987-19896916779 and up185 4bbl.GM229V-61983-19846330183-6919655150GM23061964-19661666495-2048046160GM25061967-19692048022-2770031165GM25061970-19782770032-5178958165GM25061979-19815178959-5813433185 2bbl.GM262V-61985-19870A331455-0B527954175/4.3 2bbl.GM262V-61987-19920B527955-0D7141064.3L Gen ll 2bbl.GM262V-61992-19930D714107-0F0008774.3L Gen ll 2bbl.GM262V-61993-19950F000878-0F6011264.3L Gen ll 2bbl.GM262V-619960F601127-0F8029994.3LX Gen+ 2bbl.GM262V-619960F803000 and up205 4bbl.GM262V-61985-19870A331455-0B527954205/4.3LX 4bbl.GM262V-61987-19910B527955-0D7143694.3L Gen ll 4bbl.GM262V-61992-19930D714370-0F0012194.3L Gen ll 4bbl.GM262V-61993-19950F001220-0F6011264.3L Gen ll 4bbl.GM262V-619960F601127-0F8029994.3LXE Gen+ 4bbl.GM262V-619960F803114 and up190GM283V-81963-19641564539-1730903200GM292619692453769-2712072888 2bbl.Ford302V-81971-19773108723-4887829215 4bbl.Ford302V-81970-19722781153-3385720225 4bbl.Ford302V-81973-19743385721-4166999225-S 4bbl.Ford302V-81973-19743385721-4166999898 2bbl.GM305V-81977-19824762210-6218461898 2bbl.GM305V-81983-19846218462-0B525981200 2bbl.GM305V-81985-19866218462-0B525981200/5.0L 2bbl.GM305V-81987-19950B525982-0F6000999228 4bbl.GM305V-81977-19784765100-5170008228 4bbl.GM305V-81979-19825170009-6218461228 4bbl.GM305V-81982-19846218462-0B525981230 4bbl.GM305V-81985-19866218462-0B525981230/5.0LX 4bbl.GM305V-81987-19950B525982-0F6000999225GM305V-81963-19661539620-2278646225GM327V-81967-19692278647-2694014250GM327V-81968-19692314301-2639854255GM327V-81975-19764175500-4767999250GM350V-819774768000-4908849260GM350V-81978-19824908850-6218461260/5.7LGM350V-81987-19950B525982-0F60009995.7L Alpha 2bbl.GM350V-819960F601000 and up5.7L Alpha EFI TBIGM350V-819950F355305-0F7523995.7L Alpha 2bbl. TBIGM350V-819960F752400 and up5.7LX Alpha 4bbl.GM350V-819960F601000 and up5.7LX Alpha 4bbl. TBIGM350V-819960F752400 and up5.7l BravoGM350V-81989-19950B525982-0F60009995.7l Bravo 2bbl.GM350V-819960F601000 and up5.7L Bravo EFI TBIGM350V-819950F225560-0F7523995.7L Bravo 2bbl. TBIGM350V-819960F752400 and up5.7LX Bravo 4bbl.GM350V-819960F601000 and up5.7LX Bravo 4bbl. TBIGM350V-819960F752400 and up5.7LX Bravo TBI Gen+GM350V-819960F800300 and up350 Mag. AlphaGM350V-81986-19870A635178-0B525981350 Mag. AlphaGM350V-81987-19950B525982-0F6000999350 Mag. Alpha 4bbl.GM350V-819960F601000 and up350 Mag. Alpha TBI Gen+GM350V-819960F800300 and up350 Mag. Bravo MPIGM350V-819950F415189-0F601999350 Mag. Bravo MPIGen+GM350V-819960F602000 and up270GM350V-81969-19722851074-3385720280 TRSGM350V-81975-19764176250-4770199300 TempestGM350V-81985-19866668677-0B430367320 EFIGM350V-819870A543604-0B157602320 EFIGM350V-81988-19890B157603-0C622418233Ford351V-81975-19774173000-4902304255Ford351V-81973-19743258728-4175499325GM427V-81969-19722278747-3780449330GM454V-81977-19814623115-6083144330GM454V-81982-19876083145-0B8165407.4L BravoGM454V-81988-19910B771113-0D6031177.4LX Bravo Gen. V GM454V-81992-19960D603118-0F8006997.4LX Bravo MPGM454V-819960F602010 and up454 Mag. AlphaGM454V-81986-19880A632894-0B785148454 Mag. BravoGM454V-81988-19920B721206-0D805068454 Mag. Bravo Gen VGM454V-81992-19940D805069-0F304999454 Mag. Bravo Gen VGM454V-81995-19960F305000-0F801699454 EFI Gen. VGM454V-81994-19960F115700-0F802349370 TRSGM454V-81978-19854179554-6721527370 TRSGM454V-81985-19876721528-0B714586400 TRSGM454V-81980-19864179554-0B457644420GM454V-81987-19890A398941-0B622418425GM454V-81990-19920A398941-0B622418425 Gen. VGM454V-81992-19930A398941-0B622418440 TRSGM454V-81983-19864179554-0B485220450 Gen. VGM454V-819950F347100-0F615761525 SCGM454V-81991-19920D456000 and up525 SC Gen. VGM454V-81992-19950D456000 and up390GM482V-81969-19702781129-3042731460 TRSGM482V-81983-19864179554-6181046465GM502V-81990-19920C84992-0F213244465 Gen. VGM502V-81992-19940C84992-0F213244500 Gen. VGM502V-81994-19950F213293 and up502 Mag. BravoGM502V-81990-19920C878221-0D824588502 Mag. Bravo Gen. VGM502V-81992-19930D824589-0F114528502 EFI Gen. VGM502V-81993-19950D840650-0F802599600 SCGM502V-81991-19920D456489 and up600 SC Gen. VGM502V-81992-19960D456489 and up500GM540V-81990-19960C577254 and up575GM540V-81986-19920A677429-0D763716800 SC Gen. VGM572V-81993-19960D763836 and up