Carb conversion for Gen6 454?

[Sourdough]

It's a good engine. Roller rockers. Plenty of torque, and you can run them up to about five grand and be safe doing so. The only downfall with them is you have to do some head work on them if you want to put a bigger cam in them. The valve springs have to be modified. Mine snorted pretty good with the m1 cam. It was plenty for me.

Unfortunately, I blew the valve train on mine last week.....bummer deal, but you play you pay. Haha.

I bought a truck with a tonawanda gen five in it. The old 84 will have a new heartbeat again soon

I recommend the gen six roller engines. They're pretty tough, and you can get 12-14 mpg with them. I actually owned the donor truck mine came out of, and you can't beat em.

[mechanicalman]

Originally Posted by Rede

I found a guy who has a new 502 with factory intake, cam and all the valve train for sale for 500 bucks (which I've been told that the 502 cam is a nice upgrade) but I don't know if its a dirrect swap or not... so I told him I'd try to get some answers before taking the plunge.

That's an OK deal, even better if the heads are included. If not, I'd look for some oval port heads with smaller combustion chambers.

I'd swap out the heads, bigger ports, and more cam/valve lift potential.

[Sourdough]

Anyone have info on cam swaps for the gen 5 tonawanda 454's? Head work?

[Sourdough]

I like the gen 6 rollers. They seem to last, get better mileage, and have torque all the way through the power band. I've abused mine, and I finally wound it too tight and did some valve train damage. I found another one from a fleet liquidation with 55k miles on it. Gonna gear it up just like the other, and sink it in the same truck. They're good engines.

[mechanicalman]

Make sure you don't have a gen 7, this is what the heads and intake look like. I don't think you do but just in case.

I don't think they made a gen 7 454, I think they are like somewhere around 500CI. (496 or 502?).

Sorry, didn't see the date LOL

[Hollow65]

I have a '92 454/4l80 combo that will soon become a 496. Glad this thread was revised. Maybe put my 8-71 on it?

[Sourdough]

Originally Posted by mechanicalman

Make sure you don't have a gen 7, this is what the heads and intake look like. I don't think you do but just in case.

I don't think they made a gen 7 454, I think they are like somewhere around 500CI. (496 or 502?).

Sorry, didn't see the date LOL

Posted via Mobile Device

[Sourdough]

Always an opinion.....usually wrong. 494ci