Best exh manifold gasket for Imco Power Flow
05-07-2023 | 03:55 PM
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Best exh manifold gasket for Imco Power Flow
Looking for exhaust manifold gasket. The BBC Cyl heads are square port Merlins and exhaust is Imco Power Flow. Not sure if this application needs aspecial gasket or if regular 454 gaskets will fit. Not sure if I need alum layered or steel core. Would like them to have bolt hole cutouts on ends like the one I removed. 
Last edited by zz28zz; 05-07-2023 at 04:01 PM.
05-11-2023 | 06:45 PM
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Was curious if having different material heads (cast iron) and exh manifolds (alum) would cause gasket issues due to different rates of expansion, but email from IMCO says regular BBC gaskets are fine. Went with Mr Gasket MLS 4816G since the openings best matched my exh ports and they're made for high perf/high compression engines.
