I like the stock buick 455 myself. Change the motor mounts. Use 305 Monte Carlos front springs. The v6 brackets bolt on, no problem. All fits under hood and great street sleeper.
Olds. In a Buick.I never heard of a Buick 307
Must have been the high(er). comp with a stock tight cam then. Plus the open chambered heads aren't the best in terms 9f combustion efficiency I spose.I had the 1968 LeSabre with a 350. The best gas available would not stop the detonation. I replaced it with a 1974 short block but retained the '68 heads and the four barrel intake. That was the answer. I could run cat piss and it ran great. As for the crummy oil pressure the TA oil pump kit boosted mine way up there. It came with new gears, shims, and several pressure bypass springs. All that said I really loved that 350 motor in that '68 land yacht.
In 1967 Pontiac had closed chamber heads that required air injection tubes for CAL emissions. But in 1968 they changed to open chamber heads and that let them meet emissions without AIR until 1980 when the 301 had it.open chambered heads aren't the best
HRPartsNStuff engine mounts are expensive. But they kick butt. They are WAYYYYY better than the RockAuto V6 mounts that I was using, and there still isn't any extra vibration in the car. 10/102. You will rip stock 3.8 mounts, get poly GN mounts or install a torque strap of some kind.
I just used a torque strap, I'm sure poly is the way to go, sometimes I wish i installed a buick 455. parts seem more available. I love the fact of my buick in a buick but I cannot justify the ta heads, I mean I could easily replace the engine for not much more then they want for just heads (sorry TA). I keep the ac in my car BUT I had a custom ac hose made and I converted to r134. JoshHRPartsNStuff engine mounts are expensive. But they kick butt. They are WAYYYYY better than the RockAuto V6 mounts that I was using, and there still isn't any extra vibration in the car. 10/10
sometimes i wish i went 455 or sbc but i like the 350.I just used a torque strap, I'm sure poly is the way to go, sometimes I wish i installed a buick 455. parts seem more available. I love the fact of my buick in a buick but I cannot justify the ta heads, I mean I could easily replace the engine for not much more then they want for just heads (sorry TA). I keep the ac in my car BUT I had a custom ac hose made and I converted to r134. Josh
GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.