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350 H.O. TPI owners - feedback

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Old Jan 20, 2009 | 01:58 PM
  #1  
TigerVette's Avatar
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350 H.O. TPI owners - feedback

Would appreciate feedback from those who are running the GM 350 HO with TPI. How do you like the kit, performance, driveability, etc. Does the HO cam seem to match decent with the TPI?

Looking to swap in the long block, vortec base and add my upgraded fuel system. Will only be porting the plenum and runners to match. Please, no posts about 383's and stealth rams.

Appreciate your feedback
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Old Jan 21, 2009 | 07:27 PM
  #2  
jamon8's Avatar
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From: Southern IL
Car: 88 GTA "Cocaine"
Engine: 350 tpi
Transmission: 700r4
Axle/Gears: 3.27
Re: 350 H.O. TPI owners - feedback

what are the specs on the cam and what size is the dome dish

there arent much differences in 350's

dont buy one just because of the HO
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Old Jan 21, 2009 | 08:56 PM
  #3  
burnout88's Avatar
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Joined: Nov 2003
Posts: 1,629
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From: Somewhere
Car: 88 IROC
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 10 bolt 3.73
Re: 350 H.O. TPI owners - feedback

I just posted this motor in another thread but it will be a great fit for what you are trying to do.

http://www.yearone.com/serverfiles/f...26DK73488&trk=

Part # Description Price Add to Cart
CT350PC1 Year One Power Crate 400hp 350 crate engine assembly. $2989.00

Features a 4-bolt main 350 block bored 0.030 over. It produces 12hg inches of vacuum at 800RPM--perfect for power brakes. Each engine is balanced and blueprinted and comes with a 12mth/12,000 mi warranty. It is dyno-tested and supplied with printout of your engine's results.

Note: Must use melonized distributor

Engine Specifications:

Horsepower: 400+
Torque: 400+ ft/lbs
Compression ratio: 9.5:1
Dyno-tested: Yes, includes balancer and 14" flexplate
Dyno sheet: Included with engine's output
Vacuum produced: 12hg @ 800RPM
Recommended fuel: 92 octane
Max recommended RPM- 6000
Block: Seasoned 4-bolt iron
Crankshaft: Nodular iron
Pistons: Hypereutectic
Connecting rods: Powdered metal
Camshaft- Hydraulic roller
Valve lift:.520"
Duration @ .050" (int/exh): 218deg/228deg
Rocker arms: Stamped steel 1.6:1 ratio
Cylinder heads: Ported Vortec
Valves: Stainless steel 2.02 int/1.60 exh
Valve springs: Heavy duty
Bore x Stroke: 4.030" x 3.48"
Intake manifold: Dual-plane aluminum
Oil pan, timing cover, valve covers included
Engine f
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Old Jan 22, 2009 | 12:18 AM
  #4  
TigerVette's Avatar
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Re: 350 H.O. TPI owners - feedback

Yea that's all well and good but I'm not looking for other motor options in this thread. Plenty of routes to go...

I am simply asking the folks who are running the 350 HO with TPI how they like it.
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Old Jan 22, 2009 | 09:20 AM
  #5  
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Joined: Apr 2006
Posts: 290
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From: Columbus
Car: 88 Formula, 72 Nova, 68 Chevelle
Engine: L98, mild 350, L79 327
Transmission: 700R4, M20, M20
Axle/Gears: 9b 327,10b 373, 12b 331
Re: 350 H.O. TPI owners - feedback

My father has a 350HO crate motor in his 72 El Camino SS however it is carburated. The engine itself makes alot of low end and mid range power, up to about 5500rpms. I believe his Elco ran a low 14 in the quarter mile with that engine and a 3.55 gear, not bad considering the El camino wieghs about 4300 pounds. However with the TPI set up a cam swap to a EFI specific cam would be a good idea. I also plan to use this engine to replace my L98 down the road.
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