Mercruiser Horizon MPI GEN VI Lifters
#1
Registered
Thread Starter
Join Date: Apr 2016
Location: Davenport, WA
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
Mercruiser Horizon MPI GEN VI Lifters
I'm having trouble finding an aftermarket set of lifters for my 454. The Mercruiser number is 850466T for my lifters. I have found lots of 850467 lifters available but none that match my part number exact. Does anyone know what the difference is? Or have a good source form the correct ones?
Thanks
Thanks
#2
Registered
iTrader: (1)
Edit in: See posts below this one as there are two different lifters used between the regular 454, and the Mag 454/502's.
Original post:The Merc black motors Gen VI 454 uses GM BBC Hydraulic roller lifters.
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
Original post:The Merc black motors Gen VI 454 uses GM BBC Hydraulic roller lifters.
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
Last edited by SB; 06-17-2016 at 06:27 AM.
#3
Registered
Thread Starter
Join Date: Apr 2016
Location: Davenport, WA
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
The Merc black motors Gen VI 454 uses GM BBC Hydraulic roller lifters.
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
Here is the one for my serial number:
http://www.mercruiserparts.com/850466t-lifter
Here is the one that I see commonly available:
http://www.mercruiserparts.com/850467-lifter
#4
Registered
iTrader: (1)
I'm having trouble finding an aftermarket set of lifters for my 454. The Mercruiser number is 850466T for my lifters. I have found lots of 850467 lifters available but none that match my part number exact. Does anyone know what the difference is? Or have a good source form the correct ones?
Thanks
Thanks
850467 Roller lifter Fits MCM/MIE 7.4L/LX (Gen VI) & 496 Mag/ 8.1
850466T Roller lifter Fits MCM/MIE 454 Mag, 502 Mag & 8.2L (Gen VI)
#5
Registered
iTrader: (1)
So, we discussed the following GM lifter the other week on another thread as the GM# is listed for the ZZ572 and we found also for GM's 8.1 also. So, digging for more info on this this morning I found also listed for the GM 1996+ 454 (7.4L);
GM#17120060 which is the same as ACDelco #HL121
Click below and you'll see the HL121 is used by GM on the 1996+ GEN VI 454 (7.4L) GM Trucks and by GM on the 2001+ 496 (8.1L) GM Trucks
http://parts-catalog.acdelco.com/cat...&parttype=2541
So, there you go, way cheaper than from Merc and the same lifter. The sites I checked are $30-$35 a lifter for the GM# / AcDelco # and around $100 for same lifter thru Mercruiser.
GM#17120060 which is the same as ACDelco #HL121
Click below and you'll see the HL121 is used by GM on the 1996+ GEN VI 454 (7.4L) GM Trucks and by GM on the 2001+ 496 (8.1L) GM Trucks
http://parts-catalog.acdelco.com/cat...&parttype=2541
So, there you go, way cheaper than from Merc and the same lifter. The sites I checked are $30-$35 a lifter for the GM# / AcDelco # and around $100 for same lifter thru Mercruiser.
Last edited by SB; 06-17-2016 at 05:57 AM.
#6
Registered
iTrader: (1)
The Merc black motors Gen VI 454 uses GM BBC Hydraulic roller lifters.
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
I believe the following is correct part #. Chevrolet Performance 12371056. This is the lifter kit, not individual, as the kit will be cheaper. Prices range from $305 to $400 online.
Most cam companies offer aftermarket replacements. Do you need aftermarket lifters ?
Originally Posted by GM Performance Parts (GMPP)
This hydraulic roller lifter-retainer kit can be used on all 454ci, and 502ci Gen VI engines that are machined for hydraulic roller lifters. This kit includes 16 of P/N 17120061 roller tappet, 8 of P/N 12551397 tappet guides, one of P/N 12551399 tappet guide retainer, and four of P/N 9440224 retainer bolts. For single service replacement use part numbers above.
I found notes on this lifter that states "These lifters allow more oil to the rocker arms than the late-model truck roller lifters."
As my note, the Mercruiser Magnum 454 (7.4) and 502's (8.2L) uses the same shortblock (and typically heads and some other etc) as GM Performance's 454 and 502's.
So, wow, I think I broke the GEN VI lifter code between Merc, GM, ACDelco, and GM Performance. LOL, but thank you! This was bugging me since that thread a few weeks ago and you forced me to continue. Now, to stick this in my quazilion saved pages of notes in my computer where maybe I can find it easily again ? Doh !
Last edited by SB; 06-17-2016 at 06:57 AM.
#8
Registered
iTrader: (1)
The kit may be cheaper than the indvidual. Ck on that.
The MAG's come with a larger oil pan too, 8 quarts,soI'm not sure to be honest if the higher flow oil one's will be an issue with a smaller pan that you have ?
When I get a chance,I'm gonna clean up all this lifter info, plus the Mercury Racing Motors' ones (Crane) and start a thread so it will be more easily referenced.
The MAG's come with a larger oil pan too, 8 quarts,soI'm not sure to be honest if the higher flow oil one's will be an issue with a smaller pan that you have ?
When I get a chance,I'm gonna clean up all this lifter info, plus the Mercury Racing Motors' ones (Crane) and start a thread so it will be more easily referenced.
#10
Registered
iTrader: (1)
I here you. Did you see the 500EFI thread ? Figured them damn things out at the sametime as this one.
Never been so tired figuring out parts for someone I don't know. This lifter thing took about 10 open screens, mad searching and memorizing, with a little bit of Dr Cluzo (sp?) Hah !
I said I'llclean it up and make a new thread on this subect tonight....I thing I'm too tired. LOL.
Never been so tired figuring out parts for someone I don't know. This lifter thing took about 10 open screens, mad searching and memorizing, with a little bit of Dr Cluzo (sp?) Hah !
I said I'llclean it up and make a new thread on this subect tonight....I thing I'm too tired. LOL.