Re: 1956 Johnson 30 HP casual q’s Home › Forum › Ask A Member › 1956 Johnson 30 HP casual q’s › Re: 1956 Johnson 30 HP casual q’s olcahUS Member - 1 Year (includes $3 online payment fee)Replies: 566Topics: 94 July 17, 2018 at 8:39 pm #79670 Just to close this out for reference, I put in a NOS exhaust cooling plate obtained from ede (Ed Elliot). Thank you Ed.