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<blockquote data-quote="swampratt" data-source="post: 3535094" data-attributes="member: 15054">Lots of 454&quot; engines were severely choked down..How in the world do you make such little HP from so many cubes?The 1965 BBC should be the 396&quot; 425HP which was under rated.1966 the 427&quot; became available but hot rodders were stroking them larger and before the 454 came on the scene in 1970 some hot rodders were boring and stroking the BBC to over 500&quot;.The 1947 Dodge truck I have came with a 1965 425HP 396&quot; rectangular port heads and dual 4 intake.No the intake was not factory offered that particullar engine was in the truck but my dads buddy pt it there it came he ran it in super gas class in a Chevelle with 4 speed and 4.11 gears.Dual 4&#039;s and a different cam..No head porting as I had the heads off of it when I bought the truck in 1987.He ran 9.8 at 145MPH in that chevelle.Shifted&nbsp; that 396&quot; between 8000 and 8500 RPM.Solid flat tappet cam.On the Engine dyno that 396&quot;&nbsp; made 625HP I sadly sold it to a friend that disappeared after he bought it on payments.I got paid 75 bucks for that 396</blockquote>

[QUOTE="swampratt, post: 3535094, member: 15054"] Lots of 454" engines were severely choked down..How in the world do you make such little HP from so many cubes? The 1965 BBC should be the 396" 425HP which was under rated. 1966 the 427" became available but hot rodders were stroking them larger and before the 454 came on the scene in 1970 some hot rodders were boring and stroking the BBC to over 500". The 1947 Dodge truck I have came with a 1965 425HP 396" rectangular port heads and dual 4 intake. No the intake was not factory offered that particullar engine was in the truck but my dads buddy pt it there it came he ran it in super gas class in a Chevelle with 4 speed and 4.11 gears. Dual 4's and a different cam..No head porting as I had the heads off of it when I bought the truck in 1987. He ran 9.8 at 145MPH in that chevelle. Shifted that 396" between 8000 and 8500 RPM. Solid flat tappet cam. On the Engine dyno that 396" made 625HP I sadly sold it to a friend that disappeared after he bought it on payments. I got paid 75 bucks for that 396 [/QUOTE]

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