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-   -   270 540 Build (https://www.offshoreonly.com/forums/powerquest/189221-270-540-build.html)

verbi69 07-08-2008 05:09 PM

Thanks Bob...I wont argue with you on that one...it makes way too much sense!! Thanks for the advise....anyone got headers??
mike

pkspx 07-10-2008 07:33 AM

Well instead of the build guys I am leaning more for selling the boat and upgrading something with twins. I'm thinking of listing her for roughly 30K. It's a hell of a boat with the built 454. Gellner and I have been talking about possibly still doing a new build using a bowtie block 588CI sounds like tons of fun but thinking its time to move on.

Bob280Silencer 07-11-2008 03:46 PM

588 sounds killer but I've been told once you run a twin boat it's tough to go back to a single.Bob

powerquest208 11-16-2008 08:24 PM

pkspx!! I noticed that you have done quite a few mods to your 270! I just upgraded from an Viate 208 XL to the 270. My 270 only has an 310hp 454. Need to pump it up. What did you start with & what mods worked best? Ive only been in it twice so i don't have alot of experience with the 270. GOt a steal on it but is slower than expected. HELP?
Thanks.

pkspx 12-02-2008 08:26 AM


Originally Posted by powerquest208 (Post 2741045)
pkspx!! I noticed that you have done quite a few mods to your 270! I just upgraded from an Viate 208 XL to the 270. My 270 only has an 310hp 454. Need to pump it up. What did you start with & what mods worked best? Ive only been in it twice so i don't have alot of experience with the 270. GOt a steal on it but is slower than expected. HELP?
Thanks.

Great thanks and help from Dean Gellner from Gellner Engineering!

The boat originally came with a 454 MPI EFI engine but I had it torn down and rebuilt from the ground up. It was first converted to carb using a Holley 850CFM carb. Next we changed the heads with dart Pro 1's, a cranes cam with a pretty mild grind from the catalog, roller lifters, crane cams rockers, dart hi riser manifold and blue printed balanced complete. It Definitely woke it up. I can cruise very comfortably running 50mph without beating the snot out of it. My BEST top speed with EXCELLENT conditions and temperatures, were 69.6 mph in the spring.


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