Archive for the ‘Customer Forums’ Category

Topic: MerCruiser Exhaust Manifold Replacement

Customer Question:

“I am doing a resurrection project on a Formula 1986 357 SR1 , twin MerCruiser 454 motors, with KAMMA surface drives. They need replacement marine exhaust manifolds and risers. I also need to replace the thru hull exhaust hoses that connect from the exhaust riser to the thru hull tips located at the transom of the boat. My current thru hull exhaust tips do not have the internal shutters so I’m interested in upgrading to the tips that contain the exhaust shutters that help prevent water ingestion or reversion.

I will also need the external exhaust flappers that go over the outside of the thru hull exhaust tips. The boat is moored in salt water, with possible access to fresh water flush. We really need to watch our budget with this repower project, so value marine exhaust products are required. Could you provide me with some options we could utilize for this piece of the boat restoration project? Thank you, and regards.”

Response:

Wow! This boat restoration project sounds like it will be very interesting and a lot of fun. Water ingestion (including water reversion) is definitely a concern with the big block 454 and 502 marine engines that have teh more aggressive camshafts. I will include links below not only to my recommended product options but also links to several good technical articles aimed at addressing your technical concerns. I would recommend going with the EDP coated exhaust manifolds as these are not only coated externally but double EDP coated on the inside water passages as well.

What is Water Ingestion….Read More

What are MerCruiser Exhaust Resonators….Read More

How to Determine the Proper Exhaust Riser Height….Read More

Thru Hull Exhaust…..Read More

Exhaust Flappers….Read More

EDP Coated MerCruiser Exhaust Manifolds and Risers….Read More

TOPIC: Marine Longblock Flywheels

QUESTION: I’m looking at the New GM 350 Longblock – 5.7L Vortec for Years 1996 – Current, Models Carb, TBI & MPI w/ Crank Position Sensor and noticed that is it externally balanced yet does not come with a flywheel. Can you explain how these long blocks are balanced and what balancing will be required on my end. Thanks. Ben 

RESPONSE:

Ben,

Thanks for your inquiry and the opportunity at earning your business. The main reason for this is that the longblocks can be used for different applications being both inboard or sterndrive. These use different flywheels so they wouldn’t want to include both versions of flywheel when the longblock was shipped. The other reason is that the flywheel do not “wear out” so rather than increase the cost of the longblock by including an item that doesn’t need to be changed out they just allow the customer to re-use their existing flywheel.

Using the link below you can add your selected product(s) to your shopping cart and the shipping estimator located at the bottom of the shopping cart page will give you a shipping cost and various shipping options based on your specific postal code. Let me know if you need any further technical information or help placing your order. In either case I will be glad to assist!

Link to Engine Tech Info
http://tinyurl.com/pnukpph

From: Ben G
Sent: Friday, January 1, 2016 2:13 PM
To: PPT_sales

Subject: New 350 Long Block Balancing

Good afternoon,
I’m looking at the New GM 350 Longblock – 5.7L Vortec for Years 1996 – Current, Models Carb, TBI & MPI w/ Crank Position Sensor and noticed that is it externally balanced yet does not come with a flywheel. Can you explain how these long blocks are balanced and what balancing will be required on my end. Thanks.

—
Ben G

TOPIC: Mercruiser 4.3L Longblock Replacement and Horsepower Upgrade Options

QUESTION: I have a 1997 rinker captiva 192. Merc # K170XXX. The block cracked over the winter. I am looking to replace the stock 2 barrel carb motor with hopefully a upgraded 4.3. I don’t want to go radical but justa increase in performance. Pricing is critical. I am looking for a long block. So what do you recommend. I do not want to have to modify anything in the boat. Thanks, Scott 

RESPONSE: There are a couple of options you could potentially go with and using the links below you can review these options. The 1st option listed below is the remanufactured Vortec 4.3L longblock. This product includes a 24 month warranty and comes without tin ware (oil pan, valve covers, timing chain cover, etc) but does include a full gasket set as is needed with the re-assembly. The second option is the New version of the Vortec 4.3L longblock. As illustrated in the picture this option does include the tin ware. The new longblocks carry a 12 month warranty. The third option is the Power Package which includes a new Vortec 4.3L longblock along with a 4 barrel carburetor as well as the complete ignition system. If you are currently running the standard 2 barrel carbureted version this is a great upgrade option to give you a little more top end horsepower. The fourth and final option is the 262 HP longblock. This is a balanced and blueprinted 4.3L longblock that produces 262 Hp and 300 Ft-Lb of torque. This upgraded performance option will require an upgraded fuel & ignition system to support the requirements of the additional performance.

Link to Reman Block
http://tinyurl.com/qblz2p7

Link to New Longblock
http://tinyurl.com/qds43yb

Link to New 4 BBL Carb Power Package
http://tinyurl.com/ox7uyzu

Link to High Perf Block (Requires a new carb and ignition system)
http://tinyurl.com/ldz989x

TOPIC: Available Big Block V8 Replacement Marine Engine Options for Complete Drop In Bobtail Engines

QUESTION: I am interested in purchasing two (2) 8.1L Inboard “Bobtail” engines as direct replacement for some tired 8.1L Crusaders w/ ZF Hurth 63A 2.0 transmissions. My question is what all is included with the “Bobtail pkg? Regards, Patrick

RESPONSE: Big Block V8 repowers have changed significantly within the Marine Industry over the past few years because of the discontinuation of the 454, 502 and 496 engines from General motors. Mercruiser has developed their own 8.2L engine however it comes standard with the catalyst control system which makes it more costly than in years past, and a little more challenging when repowering older applications. The only option with regards to replacing the 385 and 415 Hp big block V8’s is going with a big block 496 CID motor from the Mercruiser CPO product line. The other and more common option for replacing the L29 (330 Hp big block) is the 383 Mag Mpi. I would recommend reading the articles we have regarding repowers and see what option best suits your need.

Big Block V8 Repowering with a Drop In Bobtail  (Guidelines)……Read More

Repowering Terminology in the Marine Industry…….Read More

Mercrusier CPO Version 8.1L Engines……Read More

Remanufactured Longblock Options………Read More

If you have any other questions please don’t hesitate contacting us directly at s[email protected] and we will be happy to assist you further.

Performance Product Technologies
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com

TOPIC: Looking Up Internal Engine Parts for the Mercruiser 502 Mag Big Block V8 Marine Engines

QUESTION: Hello I’m searching for some valve stem seals for my 96′ 502 mag mpi efi engine. Maybe you can help me. The stem has a 9,36 mm stem and the guide has a diameter of 15,77 mm Will these fit ? 26-827645 kind regards Soren W.

RESPONSE: The best way to look up internal engine parts for both Mercrusier Sterndrive and Inboard Marine Engines is by using the Online Mercruiser Engine Parts Catalog. The online catalog is laid out with assembly diagrams that are categorized by both year model and serial number. Once you locate the correct engine model you can drill down to the correct assembly diagram and locate the internal engine parts you are needing. In your particular case I searched by the year model of the engine to get o this diagram;

Mercruiser Engine Parts Catalog……Read More

Mercruiser 502 Engine Cylinder Head Diagram……Read More

If you have any other questions please don’t hesitate contacting us directly at s[email protected] and we will be happy to assist you further.

Performance Product Technologies
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com

TOPIC: Mercruiser Bravo 3 Driveshaft Housing Gear Replacement Options

QUESTION: hi i have a Sea Ray 270 sd 2003 496 mag i need to repair my brayo three gear i wont to by new one DRIVESHAFT HOUSING AND DRIVE GEARS my SN is OW477xxx what do i need to order and what do i get? regades zion

RESPONSE: By using your serial number you can search the Mercruiser Parts online catalog and go directly to your Sterndrive model. By using the serial number you will be certain you are getting the correct parts for your Sterndrive application. The online catalog is formatted so you can see the other related Sterndrive accessory parts in case you need anything else as well. Also the Mercruiser Sterndrive Parts Catalog will show you how many of each particular item are required, how many of that part come to a package and also if any particular item has been “Superseded” or replaced by a newer updated version of that particular Sterndrive part.

Mercrusier Bravo 3 Sterndrive Parts Online Catalog……Read More 

If you have any other questions please don’t hesitate contacting us directly at s[email protected] and we will be happy to assist you further.

Performance Product Technologies
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com

TOPIC: How to Properly Identify a Mercruiser Big Block V8 454 Marine Engine

QUESTION: I have a 1993 ( I believe ) mercruiser 454 serial #4501880 need more information as to what engine I exactly have, I just blew a hole in the crank case! Thank you. Alain.

RESPONSE: Mercruiser did in fact produce a variety of different 7.4L 454 model Big Block V8 Marine Engines over the years. There are a couple of ways tot properly identify which model version you have.

1. Visual Identification: You can check a few of the external and internal features the engine is equipped with to know which model you have……Read More
2. Serial Number: You can verify the serial number on the side of the engine block if the serial number tag is still attached……Read More
3. Mercrusier Block Code: You can verify and match the code Mercruiser stamps into the engine block……..Read More
4. Other Visual Comparisons: Here are a few more visual identifiers that may be considered helpful…….Read More

If you have any other questions please don’t hesitate contacting us directly at s[email protected] and we will be happy to assist you further.

Performance Product Technologies
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com

TOPIC: Corsa Captain’s call Thru Hull Exhaust Systems

QUESTION: Please can you price me a corsa exhaust kit with switchable captains call silent mode for my 1999 searay 230 over nighter fitted with a mercruiser 5.0 l efi with a alpha 1 gen 2 stern drive. I would like side exit system and not the transom type. Many thanks Andy from the UK.

RESPONSE: Corsa does offer both rear exit and side exit thru-hull exhaust systems for most Sea Ray model boats. Ultimately what determines which system is best suited is a combination of which engine exhaust system yours is equipped with along with the engine compartment configuration on the boat. In many cases battery box locations, water tanks, etc can be the determining factor in which system is best suited for you.

Please review the attached Technical Article and provide us with the specified information and we will be happy to provide you with a customized quotation specific to your boat application.

Corsa Thru Hull Exhaust Systems…….Read More

If you have any other questions please don’t hesitate contacting us directly at s[email protected] and we will be happy to assist you further.

Performance Product Technologies
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com

Customer Question: I am in the market loking to replace the correct GM replacement engine for a 1986 Sea Ray Seville fitted with the 140 HP Mercruiser 3.0L Marine Engine equipped with power steering. HULL # SERV373xxxxx Engine # A618xxx Transom # A669xxx Thanks- Kevin

PPT Response: No problem Kevin thanks for the opportunity. Remanufactured 3.0L Marine Engines are getting hard to come by since this particular engine was not used in automotive applications, and therefore had the build volume of engine cores that come with that.  Since this was such a popular Marine engine there are large numbers of them to be replaced however. Therefore we put together a Technical Article that does a good job outlining these details and will provide you with a good guideline of options. Please let us know if you have any other additional questions and we will be glad to help you.

3.0L Marine Engine Replacement Options…….Read More

2.5L & 3.0L Remanufactured Marine Engines…….Read More

Customer Question: Hi 4.3 1997 Mercruiser GM, is 864309T02 a suitable replacement dry joint alternative. Please quote shipping to Sydney Australia 2234. Many thanks Kyle.

PPT Response: Mercruiser offers a variety of different Marine Exhaust Systems including the Dry Joint Exhaust System for which there are in fact 2 different designs. Using the links below you can review the History of Mercruiser’s Exhaust Systems as well as a separate article that covers the design specifics related to the dry joint design and what conversion options it allows. add your selected product(s) to your shopping cart and the shipping estimator located at the bottom of the shopping cart page will give you a shipping cost and various shipping options based on your specific postal code. Let me know if you need any further technical information or help placing your order. In either case I will be glad to assist!

History of Mercruiser Exhaust Systems……Read More

Link to Dry Joint Conversion Tech Article……Read More

Link to Product……Read More

Regards

Performance Product Technologies/IShopBoating
8002 West 6th Street
Stillwater, OK 74074
(405) 533-3812
Fax (775) 257-1769
[email protected]
www.perfprotech.com