Formula 292sr1 exhaust manifolds
#1
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Hi I have an 88 formula 292, with 454 mags. I would like to upgrade the exhaust to stainless marine or other manufactures, but was wondering If I was to find some used sets, how do I know they will fit? Is there a hight and angle fitment that is specific to Formula, or one size fits all kinda thing. I have found some used sets on this forum, from other boats, that look like they could fit, but not sure to pull the trigger on anything, tell I know.
#3
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I've had two 1988 311 SR-1s, one had aluminum spacer blocks (I've never seen since) and the other got custom high risers from Hardin (with LOTS of measurements).
Last edited by F14A water jet; 06-09-2024 at 09:54 PM.
#4
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Most SR1's require a 3" taller riser due to the silent thunder box. I had an 1989 311 that I put EMI manifolds with the 3" taller HP stainless risers they sell and it was a perfect fit. Not sure about the 292's specifically but I would be surprised if they were any different.