Build a 455 olds or different motor?

[QS442]

How far did you have to go to find the right guy?

Frank Trimble at TR Performance, Beltsville, MD is the man.

Frank built my 455. Hes not that far from us BuickOldsPontiac. I have a complete 455 core if you are looking for one

 

[fleming442]

Straight down I-95!!!!!

 

[BuickOldsPontiac]

Frank built my 455. Hes not that far from us BuickOldsPontiac. I have a complete 455 core if you are looking for one

I will keep that in mind! Although I am still (at the moment) leaning toward a SBO, it is far from a done decision!

Straight down I-95!!!!!

I prefer to drive across the Bay Bridge. Interestingly enough, from my place in Dover to where I spend a lot of time at in Baltimore, the travel time is almost identical.

 

[fleming442]

He does small blocks: you won't regret a thing when you witness the result.

 

[Tom Lambert]

Bri guy if You do decide to sell please let me know, I'll take real good care of it!

 

[Bri guy]

So this motor is a smog motor then? My uncle has a motor he pulled out his 442 with the same stamp but without the "a" after the F. We got excited thinking I got a sweet H/O smogless motor and were talking about building it. But then I noticed the lower case "a". What exactly is the difference?

 

[olds307 and 403]

Doesn't the "a" mean it has the ball stud hole and Z bar holes for a manual trans? Any 73 and up 455 has J heads with small runners, restricted exhaust ports, bowls and huge 40cc dish pistons with a lighter, weaker crank. 8 to 1 compression and restrictive heads is the definition of a smog motor. But port the J heads, better cam, small dish forged pistons along with better rods and crank make it better than any factory 455.

 

[Canon_Mutant]

Weird, I don’t remember the Fa head but you are right that the small “a” was for the 4 speed on other castings.

 

[TURNA]

What letter is on the heads??

If its a "J" it stands for junk!!

They are the worst BBO heads

 

[fleming442]

Fa was a block and Ga are heads..