About John Lantry

After my 4 1/2 year tour on a US Navy nuclear submarine, my parents and I bought a neighborhood Gulf gas station in Altamonte Springs (suburb of Orlando). It came with basic valve grinding equipment so I started there. After a year or so, we were doing work for a lot of the neighborhood shops. That went so well, in 1981 we moved to downtown Orlando, started building engines in 1986 and within 10 years employed 50 people. We sold the company in 2005, didn't like retirement so here I am, with 2 of my long term employees...back at the beginning. Hopefully I know more now than I did then. Thanks for being here, John
pressure test ford diesel heads

Cracked 6.0 and 6.4 Powerstroke Ford Diesel Cylinder Heads We make our 6.0 and 6.4 Ford diesel cylinder heads as bullet proof as is possible and back them with a no fault Lifetime Warranty! We Can Build Them By The Book or Customize Them The Way You Want Them All our Ford diesel cylinder heads…

flawed ford cylinder heads

Flawed Ford Cylinder Head? Isn’t that design the reason you’re here in the first place? We have checked over 20 new cylinder heads, from 7 different sources, including Ford’s new ‘Redesigned’ 6.0. cylinder heads. Why have we gone through this much trouble you ask? The answer is simple we at Southeast Cylinder Heads are experts…

new ford cylinder heads

New vs. Repaired Ford Cylinder Heads We often times get asked why we don’t sell new Ford Diesel Cylinder Heads and why we prefer to repair them, even though it would cost us less, and allow us to make even higher margins, as new heads can cost $342.50 or even less. The answer is simple:…

resurface cylinder heads

Have you ever wondered why Ford says don’t resurface these cylinder heads? Thickness of the cylinder head could be one reason, surface finish can be another and lastly, maybe they just want to sell more OE Ford cylinder heads. I don’t think they say it to sell more Ford cylinder heads at all. That leaves…

ford rocker boxes

6.0 Powerstroke Rocker Arms – Ford 6.0 Problems These Ford 6.0 problems can be solved. We have always known you cannot use 18MM rocker boxes on 20MM cylinder heads and vice versa. Some shops, we have been told, will change the cylinder heads and rocker boxes as assembly from an early engine to a late…

ford valve seat coming out

Ford Focus Valve Seat Gasket Problems 1997-2005 Ford 2.0 SOHC, VIN Code P, Escort, Focus and Tracer Obviously Ford sold a whole bunch of these cars. Of all the cylinder heads off these models we have done, about 75% are from a valve seat coming out. Sometimes it will damage more than one cylinder from shrapnel…

hemi damage

It’s A Well Known Problem There are 3 engine families that have a well-known problem: the intake seats fall out which naturally causes internal engine damage. Unfortunately for the Chrysler/Dodge owners, Chrysler Corp. has 2 of them:  3.7 and 4.7 SOHC engines as well as the 5.7 and 6.1 Hemi engines. In addition (according to…

broken valve seat

To begin with, broken valve seats are expensive. How would you feel if you had to repair them again….in a week? Exactly! This is a partial list of vehicles and engines we have seen with this problem: Ford Escort 1.9 SOHC, Engine VIN Code J, 1986 thru 1996 Ford Escort 2.0 SOHC, Engine VIN Code…

marine diesel engine head

Marine Head Gaskets vs. Automotive. There is no difference! There is some truth to that statement up to a point. Have you ever been 30 miles out from the shoreline and you had engine trouble with your boat engine? Now go ahead and tell me to just call AAA! Other than that, when comparing marine…

re-manufactured cylinder head

What You Don’t Know About Cylinder Heads Might Cost You $$$ Not many car buyers possess the in-depth knowledge of car engine parts which, when used while buying a new car or truck, can save you a whole lot of trouble later on. And money, don’t forget about the money you can save by knowing…

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