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Old 08-27-2002, 10:44 PM
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Post 2 bolt risk

i wanna to know the risk of a 2 bolt small block if i want to have around 400hp .

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Old 08-28-2002, 11:53 AM
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Ran many a small block Chev with 2 bolt mains back in the late '60's and early '70's because that is all there was. '55 Chev gasser with 283 (292" & 302") with Crower roller cam and Hilborn fuel injection turning close to 10,000 rpm with a Borg Warner 4 speed. Those were the days. Remember though, a 4-bolt block is much more stable so if you are putting a lot of bucks into your engine it may be worthwhile to find a good 4-bolt block.
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Old 08-28-2002, 02:00 PM
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The pricetag is the same for a 2 bolt or a 4 bolt build. If you can lay your hands on a 4 bolt use it, if not, no problem. Use a steel crank. Just don't go berserk with too much compression, or plan to twist 8K on a regular basis. Have your rotating assembly professionally balanced, plastigage every rod and main. Don't go crazy with Nitrous Oxide, You will be fine.
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Old 08-28-2002, 04:03 PM
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There is no risk, how many cranks have you seen laying on the pavement from a blown engine? Spend you money on the rods and indexing the crank.
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Old 08-28-2002, 10:27 PM
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It's not the HP it's the RPMs. Two bolt is cool, check Auto Zone for cheap 4 bolt prices
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Old 09-03-2002, 12:52 PM
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no risk. make sure to line bore if mains are out of round. dont recomment line honing
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Old 09-03-2002, 03:08 PM
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I've seen some 392 Hemis in the old days near the trash dump @ Famoso in a pile of tiny little pieces!
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Old 09-04-2002, 08:16 AM
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Yeah me too. That is because the early HEMI has a pretty weak web area and most of those guys were running the blowers well overdriven and pouring in the whole can, label and all. Was kinda neat in those days tho, two or three guys with jobs could build a competitive top fuel dragster and 40+ cars would show up for a Southern California weekend fuel meet.
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Old 09-04-2002, 08:40 AM
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My first drags was the year Mike Sorokin of the Surfers team won the March meet. Talk about a home made car! These guys literally did what we all dream about; built a top fueller with used parts in a few weeks in their garage and went out one weekend and beat all the hi-buck crews. Not a drop of paint on the car anywhere. They had a good season going B4 Mike crashed the car and died.

You are right, those guys tipped the nitro can in a basically stock cast iron engine with too much blower boost and went really fast on no-traction tires and engines between their knees. Long chassis, short chassis, bodies, no bodies, Chryslers, Fords, Cadillacs, Olds, much more entertaioning than the clone rockets that run now.
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Old 09-04-2002, 09:24 AM
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Hey man, I'm driving a 2 bolt 383 stroker making well into the 400 range. Lingenfelter does it, you can do it.
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Old 09-04-2002, 07:56 PM
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A 2 bolt can handle 500 HP if there isn't crazy compression or RPM. If your still sweating it put som ARP bolts in it or get some after-market 4 bolt caps and have your block machined for them.


"There is no such thing as TOO MUCH POWER"
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