This Titanium stud kit is a great idea for stock engines but is considered a MUST for big bore
Wiseco 86mm forged piston
A: The CP Carrillo forged piston features an 11:1 compression ratio
• SKF counter balancer bearings
05+ Honda 400EX 400X 89mm 440 Big Bore Cylinder Wiseco Piston Engine Rebuild Kit CRF450L/CRF450RL This Titanium stud kit isWPC131B, 4667M08900, C7826, K014, B5047,4040, C7825, 808894, 822278, 4040, CBK0016, C7826, 12100 KCY 670, 4606M08500, C7826, 71016 4, 12191 KCY 673, 13011 KCY 670, 90601 KA5 000, 13103 KCY 670, 13111 KCY 670, 12251 HN1 003, 12209 KL4 005, C7825, 808894, 822278, 4040, WPC131A, WPC131B, CBK0016,TBK0012, K014,8604DA BPRATV Big Bore Rebuild Kit for Honda TRX 400EX 400X Unlock Power with 440cc Wiseco Performance! Elevate your Honda TRX 400EX 400X's