By larger do you mean longer ?? What you will find in some kits is this. The factory bolts came in special sizes. Some may be 1 3/16 long. But "normal" bolts are usually in 1/4 or 1/8 increments. So you will find some bolts anywhere from 1/16 to 1/8 longer. But they should be the same diameter and thread pattern if it's any kind of a kit.
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67 Firebird Convert 455 +.060 TH400 74cc KRE d-ports piston dished 16cc H-beam rods Comp Cam 305-AH-8 cam 108* LSA 253/260 @.050 duration .577/.594 lift w/1.65 rockers Ford 9" 3.50 Detroit Locker M/T Sportsman Radials 31x18x15 on Convo Pro 15x15s
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