Thread: Any One Do A Build Up On A 350 1 Piece Seal

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I have built many Chevy 2 piece seal GEN 1 engines . But now I have a 1989 350 Chevy truck long block engine . I Want to build up the short block . The heads and TBI set up will be swaped for Vortec heads and a Dual plane carb intake . This engine has a fuel pump block off plate . And I do think it is drilled for a fuel pump rod . Are these 1 piece seal engines any good for HP Builds ?

mmmmmm......... yeah!

Originally Posted by nitrowarrior

mmmmmm......... yeah!

That about tells me all I need to know . I will build it like I build the GEN 1 engines . I am sure it will run good like they do ! Shop Tom Do you like the 1 piece SB 350s TANGO

I'm certainly no Chevy expert, but I built the '99 Vortec for my T and saw no material differences in it vs the old engines. The one piece seal was nice and easy to install also, much easier than the old two piece ones IMO.

Don

Originally Posted by Itoldyouso

I'm certainly no Chevy expert, but I built the '99 Vortec for my T and saw no material differences in it vs the old engines. The one piece seal was nice and easy to install also, much easier than the old two piece ones IMO.

Don

What kind of fuel pump and camshaft did you run . Your block is not drilled for the fuel pump rod ? Thanks

Mine was a marine engine that I rebuilt. I ran an electric pump and left the stock roller cam in it to save some $$$$. Ended up that the cam is pretty good on the street, lots of low end torque and I don't care about top end in this one. They say marine cams are close to an RV grind. Haven't ever verified that, but it sounds reasonable.

Don

Was this a 5.0 or a 5.7 Marine engine ? I can pick up a 350 260hp boat engine . I was not sure how and if I could use it in a car . I did use a old 327 long block out of a boat one time . It worked out ok . Thanks

Use the same ideas that you would approach the two piece Gen1 engines. Cam, carb, and head work, etc. Forged cranks are a bit more scarce but can be found with a bit or searching. I own one for use in a later project. Got it out of a C-50 truck.

Originally Posted by nitrowarrior

Use the same ideas that you would approach the two piece Gen1 engines. Cam, carb, and head work, etc. Forged cranks are a bit more scarce but can be found with a bit or searching. I own one for use in a later project. Got it out of a C-50 truck.

Thanks for the info . I hope that this engine has a forged crank . But its a 1/2 ton with an auto trans . So I think not . Do you like the OEM roller cam set up . Or would you go with a flat tappet cam ?

GM has some very nice roller set ups that run very nice and have good manners. Some of the aftermarket grinds (and retros) have good tunability and can work well. Like I stated earlier, use the same attitude as you would on the early blocks. Tune it how you wish just like the old days.

Denny do you like these 1 piece SB 350s . One engine builder told me if the dip stick is not on the drivers side dont build it to race . I always liked 1976 or older SB Chevy engines .

Thanks denny for your input . I do know that shop tom said that TPI rods were strong . I now that he has built these engines . I am looking forward to his ideas on a build .

Originally Posted by tango

Thanks denny for your input . I do know that shop tom said that TPI rods were strong . I now that he has built these engines . I am looking forward to his ideas on a build .

Shop tom tell me more about the TPI rods thanks TANGO