Assembling modified Buick LN3 3800 Series I engine. Low-tension piston rings.

Assembling modified Buick LN3 3800 Series I engine. Low-tension piston rings. The entire rotating ammembly is together and torqued to specs. Even so, I can rotate the engine by hand (ONE hand, at that!) by turning the crank pulley. This is how a new engine should feel. The camera picks up well the sliding sound of the new pistons on the new cylinder bore. It is not really that loud!

This engine is for an 89 LeSabre T. It has been modified. It has Series II 9.8:1 compression pistons (with low-tension rings); 252° Delta Cams modified roller camshaft; ported heads, inlet and exhaust manifolds; and a re-tune of the ECM.

Category:

Autos & Vehicles

Tags:

• Buick
• 3800
• rebuild
• LN3
• LeSabre
• T-Type
• 3.8
• low-tension
• piston
• rings

[hotdogsandwiches]

how much did it cost for delta to modify your cams? thanks!

[davida1hiwaaynet]

@hotdogsandwiches It's been a while and I don't remember exactly. I beleive it was in the $50 to 100 range though.

[968nbeyer]

where did you get the cam from?

[davida1hiwaaynet]

@968nbeyer

That is the original cam; remanufactured and given a new cam lobe profile. It was sent to Delta Camshaft and they reground it into the new profile.

[150peacemaker]

@will79601 its a mess of a math problem but i would say about 15-20 hp with high compression pistons

[corekid420]

whats the difference betweem the low tension rings vs stock???

[will79601]

hey if I have a series II 3800 gm and bore it .30 over wonder how much more hp I would pick up