Originally posted by Gunslinger09
L98 350
Heads: good design can be ported fairly easily. Post 1986 they will be aluminum.
block: cast iron 4bolt mains strong. A good starting point.
Crank: The Vette Crank should be forged steel.
Rods: Cast stock 5.7' length.
Pistons: Hyperretectic, stronger than cast not nearly as strong as forged aluminum. Static CR was 9.5:1
They were rated at 245 horse. The big impediments to this motor making power was the stock throttle body and the upper\lower TPI manifold. Most peole change them out and get 300 hp down. This cam be expensive if you go with a setup like the Stealthram or relatively cheap if you convert to a 4bbl Carb and intake. Stock internals with headwork and s a cam intake swap and you should be able to put down 350+ hp and run deep in the twelves. You can get a rebuild kit from Summit Racing Equipment for $400 or so and pay an extra $150 I think for stage II rods and have a short block that will hold up to 600 hp.
Umm I thought they were alumn starting around 88 in the vettes and the fbodys had iron the entire time? Also thought the block was a 2 bolt main? And they all werent rated at 245, it didnt reach 245 till 89 according the Vette blackbook