Printable View
I opted for changing heads on my 350 marine engine instead of stroking to a 383. I put on the Dart Iron Eagle heads and was impressed. I only got about 30 horses or so though...
Should I stick with a good GM set of heads, or spend the money for after market cast iron. I need to stay cast iron...
Quote:
Originally Posted by 76GMC1500
I would choose your heads after you figure out if you are going low deck or tall deck.Quote:
Originally Posted by AdamB
In other words a tall deck would be larger and require more head.
some day I'll crawl into the engine bay and take some pics LOL. I did look for the engine numbers but didn't see anything. Will look again in better light.
they did not use 454 tall decks in the low power mercs that i ever work on they did use 427tall decks and they did make hi hp tall decks but alot more CID a540 short deck would not use a smaller head than a 540 tall deck
I was refering to a 489/496 low deck when I talked about a smaller head meaning if it is a tall deck I would assume he would go 530+ cubes.Quote:
Originally Posted by pat mccarthy
well ok tell me:3dSMILE:he as making what ? a tall deck or short ? i have not seen a 454 tall deck? :whacked: what head to use it is top RPM with the prop he will run and build from thereQuote:
Originally Posted by erik erikson
Pat,I don't know what he is trying to build.Quote:
Originally Posted by pat mccarthy
I have not seen a tall deck 454 but I have seen a tall deck 427.
Pat,are you messing with me??:D :whacked:
maybe :D he did say 454 tall deck ? or am i having flash backs:confused:need to lay down room is spining :whacked:Quote:
Originally Posted by erik erikson
Pat,does your stress seem to get worse when you are on the forum??:LOL:Quote:
Originally Posted by pat mccarthy
no i take good drugs:whacked: i just did not time them right to kick in :whacked: i hate it when my timing is off:HMMM:Quote:
Originally Posted by erik erikson
Ignition timing or cam timing???:whacked: :LOL:Quote:
Originally Posted by pat mccarthy
:confused:must be valve timing intake valve yup that is it :D or just to much over lap:eek:Quote:
Originally Posted by erik erikson
There are no tall deck marine engines, the 330 hp 454 is the same engine found in the 70's-80's Chevy pickups.
yes i think i did say that:)
Okay, I must have heard or read wrong some where about the tall deck thing. I will make a point of uncovering the boat today (wednesday) and crawling in there to see if I can see some engine #'s. Like I said, this boat originally had a 502 in it, but the owner replaced it with whatever is in there now. It says 454 on the valve covers but......
Sorry to all you guys if I caused the room to spin LOL.