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The tall deck height was intentional for long rods and long piston skirts;both of which contribute greatly to logevity. Big horsepower for these engines was an afterthought.

With medium 3.23-3.55 gearing ON THE STREET the B/RB heads are nearly perfect. Race cars are few compared to street musclecars. Big ports are better for racing [street or track] with 4.10 or more rear gears and high stall torque converters. Big ports suck with medium street gearing. Another...

My post #49 was in response to #48 which was about open chamber iron 906 heads on pump fuel. Of coarse there are many other factors at play and especially under other circumstances including quench,closed chambers,aluminum,altitude,cam timing etc. . That said... the combo in #48 will work quite...

Me thinks octane is octane regardless of whats in the fuel. Therefore, me thinks 10:1 is likely about the limit for pump premium with iron heads as has been the generally accepted reality for a few decades now. Iv built a couple myself at 9.7-9.8 which are doing fine on 92 octane for what its worth.

They were a weakness on the dragstrip;but they worked very well on the streets. The Hemi solved the drag strip problem. The 2-bolt mains are good for 550-600 HP with studs. Perfectly adequate for probably 95% of builds. After that,a very good block and probably a girdle becomes a very good idea.

People seem to forget that big huge intake ports dont work so good with the medium street friendly rear gears which most muscle cars came with back in the days of no overdrive transmissions. The ports on the B/RB engines [especially the 440] were in fact excellent for creating long fat torque...

Try "The Right Stuff" after brake clean and compressed air liberally applied.

Isnt it something that the factory over rated their advertised compression ratios on nearly everything? Very decieving and outright dishonest if you ask me. Doing the math is definetly mandatory when planning an engine build unless you want bone stock.

Sounds good but being ground correctly is the main thing. If they fail to rotate....

Felpro sells a gasket kit just for the front of the engine. In said kit there is a cork gasket piece made to go between the timing cover and the pan to replace what will be the damage to the pan gasket from removal of the timing cover. You will need to use a good gasket maker/sealer on both...

Clean it with brake clean and compessed air;repeat. Then pack tightly with 1 minute curing right stuff gasket maker.

100$-$150 was before bidenflation. Now think $200-$250; and they aint makin any more of em.

I spin it w/pushrods installed,oiling system fully primed,lifters then fully pumped up hard. Otherwise they wont rotate nearly as well ive found. Lots of cam lube added with good access without intake installed.

I wont fire an engine before making sure all lifters are rotating using the starter motor on my run stand. After varifying all liftes rotate i then install the intake. If any dont rotate[or barely rotate] i put a new lifter on that lobe and try again. If still no rotation,out comes the cam. Good...

Changing pistons usually requires rebalancing. Something to keep in mind.

Sounds like how a hi-stall converter normally works; i.e. they slip more. That said,maybe you all know that and the problem lies elswhere?

Looks like a good candidate for a smallblock.

Your piston weight is going to go up about 50 grams with any of the higher compression height pistons such as the 1263 or L2266F mentioned above so beware.

Sometimes the dot to dot method is not accurate and can lead to several degrees of valve timing error. Degree it if you can and that RV grind should not require any advancing if the dots prove to be accurate. Good idea to break-in the cam using your old worn/weak springs. After break-in i would...

At the risk of being overly argumentive.........346s and 452s have the exact same ports and flow equally. 452s likely have a few ccs more chamber volume and induction hardened valve seats which is why i suggested getting another 452. When you do the math on the 400s actual compression ratio it...