VL HEADS 1930-35 7 bolt heads. Pair is marked 9.3 or medium compression, some broken fins and chipped edges. Dirty and needs media blasted, nothing that affects service. I ran a plug tap into both openings and can lock it up tight. One set of threads is weaker than other but do not believe it is an issue. Head bolt openings have not been compromised. ALWAYS include your email address and telephone number with ALL communications.