I am looking at the the following engine from www.goautocenter.com :

NEW 350 CID ENGINE CAST IRON HEADS, 1-PIECE REAR SEAL,1987+ INTAKE FACE, TUNE PORT ROLLER CAM
ENGINE FEATURES:

100% New engine, 350 CID, 2-bolt mains, V-8, 1-piece rear main seal, nodular iron crank, forged rods, 9.2:1 cast pistons, roller hydraulic cam, 1.94" intake valve, 1.50" exhaust valve, oil pump, oil pan, RH dip stick, valve covers, timing chain cover and harmonic balancer. NOTES: This engine is based on a 1993 motor with a roller hydraulic cam added. This cam works best with TPI 1987-89.

I want to add Sportman II heads and the ZZ4 cam as well. Does this sound like a good set up? I have a 305 TPI at the moment. Can i just change the chip to a 350 for the moment until i can burn my own proms.. or do i have to change the whole computer? With the 64cc heads and this engine.. is the CR a little low for a strong engine? (13 sec q/m) How can i bump it up a bit if need be.. can i deck the heads or look for a block with a higher CR? I will be upgrading the TPI with the usual toys when i do this. I would like around 300 HP when all is said and done.

Thanks Guys



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• 89 Formula 305 WS6
  SFC's, LCA's,
  Spohn Panhard Bar
  Air Foil
  Flowmaster Cat Back
  Tranny Cooler
  A/F Ratio Meter (not a mod but it sure spurs interest)
  Trans Temp Gauge
  Most "Free" Mods
  3:73, Zexel Torsion Posi
• 90 Eagle Talon 2.0
  (Winter Beater)
  Mods? Um, no

 

If you plan on swapping the heads when you go to put it in you may just want to look for a short block (block,crank,rods,pistons,cam,pump,pan) and then add heads and swap the cam, you can get a head with a smaller chamber or have those milled later if you wanted.

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86 Z28, 93 LT1 swap in progress:

93 LT1
T5
Edelbrock Catback

Soon to come: Turbo and intercooler.

 

Thats what i was considering, but they said they could add the cam, but the heads it comes with wouldn't like it (the lift) they said that for $2600 they would add world, edelbrock, and some other head. So basically they would sell me the setup i want, i was just making sure they are a matched set up. I am just unsure on the CR. By the way, are the Sportsmans' emission friendly?

 

They don't say much about the heads, but with a CR that low, they must be large chamber. You might want to call and ask.

The Sportmans carry CARB E.O. #D-343-1, so, yes, they're emissions friendly. Available in 72 or 64 cc chamber, straight or angle plug. The 64's might help compression a little. www.worldcastings.com , click on "Small Block Chevy" under "Seach By Engine".

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R4. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/'87 LB9 block, ZZ3 cam and intake, World 305 heads, Hooker headers & y-pipe, 3" Catco cat & 3" cat-back).
57 Bel Air, my 1st car. 0.030 over 396, 9.7 CR forged TRWs, Weiand Action+, Edelbrock 1901 Q-Jet, GK 270 cam, Magnum rockers, Jacobs Omnipack, 1-3/4" Hedders & 3" Warlock header mufflers, TH400 w/TCI Sat Night Special conv & Trans-Scat shift kit, 3.08 8.2" 10-bolt w/Powertrax, AMSOIL syn lubes bumper-to-bumper. Best 15.1/94.6 @ 5800' Bandimere.

 

Now with the 72cc chamber, i will get a higher CR right? I thought you would get a lower CR... whats the deal with that?

 

Larger chamber = lower compression ratio, all other things being equal.