400hp 351w startup tune

[efloth]

our stock 351 cruises nicely on flat and level with the 33s and same gearing. Is this engine really going to have less torque under 2k than stock? compression is just shy of 10:1

Cleaned, checked and honed 1994 roller block at standard 4" bore.
.010 under crank kit with aluminum bearings
Speed pro H336P hypereutectic pistons with matching Hastings Moly rings
AFR-1472 Aluminum heads - 58cc chamber, 165cc Intake runner (recommend by AFR for better low end torque vs the 185s)
1/2" ARP head bolts
Fel-Pro Performance Head Gaskets 1011-1
Scorpion 1022 Pedestal mount 1.72 roller rockers (I'll be ordering correct length pushrods and pedestal shims when I get to that point)
Standard volume Melling oil pump
Ford factory oil cooler from a 1994 van
AEM 340LPH fuel pump
Summit shorty headers

[Sevensecondsuv]

It'll probably be similar at 2000 but it'll stomp all over the stocker by 3000 and leave it in the dust as it screams to 5000+ while the stocker noses over after 3500. Unless you want to cruise at 90 mph, I see no reason to be geared so tall. The engine is never going to be in it's sweet spot without a lot of downshifting.

What are you doing for an intake? The 351 truck multiport one isn't exactly a race piece.... Although I do hear the 351 lower can be ported and combined with a port matched 302 truck upper to end up with a halfway-decent combo. Even that probably breathes worse than the "small" AFR heads though.

[efloth]

Yeah! I can't wait to get it running! The factory electronic od lockout is all I need when towing or climbing. Everybody drives 80 mph plus out here in Cali so it's not far from your statement.

Big dogs is porting my stock upper and lower intake. They can get them to flow ~240 CFM which is nearly what the ported AFR heads flow. I'm pairing it with a 61 mm BBK throttle body.