Thread: Harmonic balancer on 454 has 4 timing marks.....

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Originally Posted by pat mccarthy

good roller have there name stamp in them gold mostly are crane but comp sells gold rockers harland sharps are red bronze but there knock offs that look alike them . the numbers do not sound right they should be cast in side the head like 30040 oval 30620 rec ports but heads could be a very early set of heads

I was in the process of searching them when I seen your post. Here a link to what I found:
World Products - MERLIN Rectangular Port Iron Heads

Originally Posted by repoman3809

I was in the process of searching them when I seen your post. Here a link to what I found:
World Products - MERLIN Rectangular Port Iron Heads

them heads are not very good for a mild 454 would work better with a smaller port have to know more about the engine race fule only engine the boat as what you do with it .but were did this thing rpm out at ?. yep the last time i had a set of there heads i had to call them .they did not go by there part number on older heads and thats what i posted they go by id numbers now they put the part numbers on the new heads ?? what the hell ? they can not make it easy

Originally Posted by pat mccarthy

them heads are not very good for a mild 454 would work better with a smaller port have to know more about the engine race fule only engine the boat as what you do with it .but were did this thing rpm out at ?. yep the last time i had a set of there heads i had to call them .they did not go by there part number on older heads and thats what i posted they go by id numbers now they put the part numbers on the new heads ?? what the hell ? they can not make it easy

Not a "RACE" engine, but the dealer did tell me it was in a baja that was in 70mph range(if you wanna believe him). I have no idea where this motor RPM's at. It's never really run out on the water.

The boat 28ft, weights about 6500-7000lbs with full tank and some passengers. Original motor was 4500 RPM at roughly 45-50mph. Was hoping this motor would get me into the 60-65mph range.

would be better with big O ports then them head s will kill you .getting it up an out on plane you need TQ them heads i would not think of using on any thing under 500s you will have to kick to guts out of the 454 with them heads. to big less you want to build a 540or 556

Originally Posted by pat mccarthy

would be better with big O ports then them head s will kill you .getting it up an out on plane you need TQ them heads i would not think of using on any thing under 500s you will have to kick to guts out of the 454 with them heads. to big less you want to build a 540or 556

If that's the case...you want em? Really, I'm looking for a good mix. I need bottom end more than anything...no doubt. I like to pull a skier and be able to get on plane fast(though I do have trim tabs). Of course, I'd also like to get up to 55mph at least.

i know i can get you low bottom end power mid range power . just do not know what you want to start with ? first need to see if you have any thing i can start to build on . if not i have some stuff

I do have a few other motors I'd like to get rid of. This is for anyone looking.

I have a nice 305 w tranny that came out of a 1994 GMC Sierra. I repoed the truck for a local bank. The truck was pretty much totaled in the rear end. The bank let the truck sit on my lot 9 months and had a huge storage bill with me. They decided they didnt want the truck and didn't want to pay the storage. I asked for the title several times, but never happened. I didnt have keys so I pulled ignition and through a battery in it. Fired right up, had good oil pressure, sounded great, even had cold AC. Think it had 88k on it. Been sitting on the motor/tranny for 2 years. Scrapped the rest.

Also got a 1952 straight six, complete motor. Been sitting for at least 10 years though. Came of my grandfather, then dads, now my 1952 Ford F2. Dad and I put a Chevy 350 in the old Ford, runs like a scalded dog. LOL Maybe not the best place to announce that type of transplant, but it looks good and runs great.

Also got a few other motors and quite a few old Rochester carbs. I'd have to look and see whats what.

Originally Posted by repoman3809

If that's the case...you want em? Really, I'm looking for a good mix. I need bottom end more than anything...no doubt. I like to pull a skier and be able to get on plane fast(though I do have trim tabs). Of course, I'd also like to get up to 55mph at least.

you should get that with 450 hp the old 375 merc could do 55 in a sea ray have to look up the TQ on that thing .but i know i can do better with some good heads that are out know . get yours pulled down look it over .pm me tell me what you have to work with and a budget and i will do my best to ring every drop of power out of the engine