17-03-2018, 07:37 PM
The original side valve Reliant engines were derived from Austin 7 engines and made a viable repower for those not bothered about originality. The later OHV engines are a completely different animal and nothing like an A7 engine, they can be fitted but it is not a straight forward swap. The confusion comes I believe with the 750MC's acceptance of these engines for racing specials together with 750cc Coventry Climax engines. If you are building a racing car and modifying everything an engine transplant is not really a greater hassle, in a pre existing road car maybe not such a simple task. BTW the climax engine would be my choice for an out and out 750MC special.
Black Art Enthusiast