Jasper Engines

[quahogger]

Hello,
I'll looking at a Airstream with a rebuilt Jasper 454 Chevy engine. Anyone have any information on the Jasper replacement engines ?
Thanks,
Ed

[blacksheep]

I have put 2 Jaspers in my own vehicles over the years, didn't have any trouble with them.

Godspeed,
Trent

[Crusty]

I put a small block in a Dodge pickup. The engine operated fine for many years/miles and the only build problem that I ran in to was that the casting plugs in the block were made of steel which corroded out and had to be replaced within the first year.

[crispyboy]

Casting plugs?
Do you mean the freeze plugs?
These should be knocked out when the old engine is put in a tank of caustic liquid when it is cleaned up prior to the rebuild. These are typically replaced with a quality rebuild. I'm would be surprised Jasper would let this one slip by. Typically Jasper is an expensive engine to purchase because they have a good warranty and good reputation.

[Crusty]

The holes in the block are there for casting purposes and the plugs which are inserted to close them are casting plugs. "Freeze plugs" is a misunderstanding of their purpose. If steel plugs are not coated in some way (such as the factory units are) they will corrode due to chemical reactions in the heated coolant in contact with dissimilar metals in the cooling system. Antifreezes have anticorrosion additives in them to fight this effect, as did my motor which still had the plugs corrode through in less than a year.

[Gypsy Jo]

Have not had personal experience with Jasper engines but did some research on them for my MH a couple of people on the forums have put them in their mh's and were pleased with them. Talk to the company over the phone very nice and professional answered all my questions .As far as I can tell they are a good engine ,company.
Jo

[Keyair]

Mine has a Jasper in it and it pulls hard and feels strong!